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323 vulnerabilities found for freerdp by freerdp
CVE-2026-125394 (GCVE-0-2026-125394)
Vulnerability from cvelistv5 – Published: 2026-11-09 23:27 – Updated: 2026-11-09 23:27
VLAI
EPSS
VEX
Title
FreeRDP before 3.33.0 Use-After-Free via Stale Brush Cache Pointer
Summary
FreeRDP before 3.33.0 contains a heap use-after-free vulnerability in update_gdi_patblt(), update_gdi_polygon_cb() and update_gdi_mem3blt() that retain stale brush cache pointers. A malicious RDP server can resend CACHE_BRUSH to the same slot then send PATBLT, causing clients to read freed heap memory, disclosing data or crashing.
Severity
5.4 (Medium)
CWE
- CWE-416 - Use After Free
Assigner
VulnCheck
CNA
References
5 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://github.com/FreeRDP/FreeRDP/commit/ffc6b97… | patch |
| https://github.com/FreeRDP/FreeRDP/releases/tag/3.33.0 | release-notes |
| https://github.com/FreeRDP/FreeRDP/blob/3.32.2/li… | technical-description |
| https://www.vulncheck.com/advisories/freerdp-befo… | third-party-advisory |
Impacted products
Date Public
2026-11-09 00:00
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CVE-2026-121964 (GCVE-0-2026-121964)
Vulnerability from cvelistv5 – Published: 2026-11-04 15:33 – Updated: 2026-11-04 18:19
VLAI
EPSS
VEX
Title
FreeRDP before 3.32.2 Heap Buffer Overflow via rpc_client_recv_fragment
Summary
FreeRDP before 3.32.2 contains a heap-based buffer overflow in the RD Gateway RPC client, where rpc_client_recv_fragment writes BIND_ACK and ALTER_CONTEXT_RESP fragments into a persistent PDU stream after checking only total capacity rather than remaining capacity from the current stream position. A malicious or compromised RD Gateway can send crafted RPC fragments with manipulated alloc_hint and frag_length values to overwrite client heap memory with attacker-controlled data, causing a crash or potentially arbitrary code execution.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-04 18:19 UTC
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-befo… | third-party-advisory |
Impacted products
Date Public
2026-10-20 00:00
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CVE-2026-121963 (GCVE-0-2026-121963)
Vulnerability from cvelistv5 – Published: 2026-11-04 15:33 – Updated: 2026-11-04 18:20
VLAI
EPSS
VEX
Title
FreeRDP before 3.32.2 Use-After-Free via Dynamic rdpsnd Channel Close
Summary
FreeRDP before 3.32.2 contains a use-after-free vulnerability in the asynchronous dynamic rdpsnd channel that allows malicious RDP servers to trigger freed callback access by closing the channel with queued audio PDUs. Attackers can send a training PDU then close the channel so the playback thread reads the freed callback in rdpsnd_virtual_channel_write, crashing the client.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-04 18:20 UTC
CWE
- CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-befo… | third-party-advisory |
Impacted products
Date Public
2026-10-20 00:00
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CVE-2026-121962 (GCVE-0-2026-121962)
Vulnerability from cvelistv5 – Published: 2026-11-04 15:33 – Updated: 2026-11-04 18:24
VLAI
EPSS
VEX
Title
FreeRDP before 3.32.2 Heap Buffer Overflow via Early User Authorization Read
Summary
FreeRDP before 3.32.2 contains a heap buffer overflow in transport_default_read_pdu when handling partial Early User Authorization reads during PROTOCOL_HYBRID_EX CredSSP. A malicious RDP server can split the four-byte EUA result into short reads that advance the stream pointer beyond the 16 KiB allocation, causing an out-of-bounds write and client denial of service.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-04 18:23 UTC
CWE
- CWE-787 - Out-of-bounds Write
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-befo… | third-party-advisory |
Impacted products
Date Public
2026-10-20 00:00
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CVE-2026-121961 (GCVE-0-2026-121961)
Vulnerability from cvelistv5 – Published: 2026-11-04 15:33 – Updated: 2026-11-04 18:11
VLAI
EPSS
VEX
Title
FreeRDP before 3.32.2 Use-After-Free via DRDYNVC Tracker Race
Summary
FreeRDP before 3.32.2 contains a use-after-free vulnerability in the freerdp-proxy DRDYNVC tracker when intercepting the drdynvc channel. A malicious target server can repeatedly send CREATE_REQUEST_PDU for an active channel id, racing front DATA handling to free a borrowed context and crash the proxy process.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-04 18:11 UTC
CWE
- CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-befo… | third-party-advisory |
Impacted products
Date Public
2026-10-20 00:00
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CVE-2026-121960 (GCVE-0-2026-121960)
Vulnerability from cvelistv5 – Published: 2026-11-04 15:33 – Updated: 2026-11-04 18:27
VLAI
EPSS
VEX
Title
FreeRDP before 3.32.2 Unauthenticated Denial of Service via CredSSP TSRequest
Summary
FreeRDP before 3.32.2 contains a denial of service vulnerability in the NLA-enabled shadow server when a CredSSP TSRequest omits negoTokens. Unauthenticated attackers can send a crafted seven-byte TSRequest containing only the version field to trigger a fatal WINPR_ASSERT and abort the server process.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-04 18:26 UTC
CWE
- CWE-617 - Reachable Assertion
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-befo… | third-party-advisory |
Impacted products
Date Public
2026-10-20 00:00
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CVE-2026-121959 (GCVE-0-2026-121959)
Vulnerability from cvelistv5 – Published: 2026-11-04 15:33 – Updated: 2026-11-04 18:28
VLAI
EPSS
VEX
Title
FreeRDP before 3.32.2 Infinite Loop via Truncated WebSocket Frame
Summary
FreeRDP before 3.32.2 contains an infinite loop vulnerability in websocket_context_read that fails to handle a zero BIO result with payload outstanding. A malicious RD Gateway can send a truncated WebSocket frame followed by a TLS close_notify, causing a client thread to spin and consume CPU until killed.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-04 18:27 UTC
CWE
- CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-befo… | third-party-advisory |
Impacted products
Date Public
2026-10-20 00:00
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CVE-2026-121958 (GCVE-0-2026-121958)
Vulnerability from cvelistv5 – Published: 2026-11-04 15:33 – Updated: 2026-11-04 18:29
VLAI
EPSS
VEX
Title
FreeRDP through 3.32.1 Heap Out-of-Bounds Write via RDPGFX HashTable_GetKeys
Summary
FreeRDP through 3.32.1 has a heap out-of-bounds write in the RDPGFX client because the delete_surface callback truncates surface hash keys to 16 bits, leaving the surface table inconsistent so HashTable_GetKeys writes past its allocated key array. A malicious or man-in-the-middle RDP server can exploit this by creating surfaceId 0xFFFF, closing the RDPGFX channel, sending repeated DELETESURFACE PDUs, and then sending ENDFRAME or RESETGRAPHICS.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-04 18:28 UTC
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-thro… | third-party-advisory |
Impacted products
Date Public
2026-10-20 00:00
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CVE-2026-121957 (GCVE-0-2026-121957)
Vulnerability from cvelistv5 – Published: 2026-11-04 15:33 – Updated: 2026-11-04 18:30
VLAI
EPSS
VEX
Title
FreeRDP before 3.32.2 Use-After-Free via RDPGFX ResetGraphics Race
Summary
FreeRDP before 3.32.2 contains a use-after-free vulnerability that allows malicious RDP servers to corrupt client memory by racing the RDPGFX ResetGraphics handler against the planar bitmap decoder. Attackers can send ResetGraphics while concurrently sending compressed bitmaps of 32 bpp or more to trigger heap use-after-free or out-of-bounds read/write on shared planar buffers.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-04 18:29 UTC
CWE
- CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-befo… | third-party-advisory |
Impacted products
Date Public
2026-10-20 00:00
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CVE-2026-121956 (GCVE-0-2026-121956)
Vulnerability from cvelistv5 – Published: 2026-11-04 15:33 – Updated: 2026-11-04 18:30
VLAI
EPSS
VEX
Title
FreeRDP before 3.32.2 Double Free in WinPR Kerberos retrieveSomeTgt
Summary
FreeRDP before 3.32.2 contains a double free in the WinPR Kerberos SSPI retrieveSomeTgt function, which installs the krb5 default realm into a target principal that has an empty realm without taking ownership of it. Unauthenticated remote clients can send a crafted NLA/CredSSP u2u TGT request whose server-name component contains '@' to corrupt the heap and crash the server process.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-04 18:30 UTC
CWE
- CWE-415 - Double Free
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-befo… | third-party-advisory |
Impacted products
Date Public
2026-10-20 00:00
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CVE-2026-121955 (GCVE-0-2026-121955)
Vulnerability from cvelistv5 – Published: 2026-11-04 15:33 – Updated: 2026-11-04 18:26
VLAI
EPSS
VEX
Title
FreeRDP before 3.32.2 Use-After-Free in Smartcard Emulation ReleaseContext
Summary
FreeRDP before 3.32.2 contains a use-after-free vulnerability in Emulate_SCardReleaseContext that frees the emulated SCardContext before its worker thread is cancelled and joined. A malicious server can send ESTABLISHCONTEXT, a long-timeout GETSTATUSCHANGE, then RELEASECONTEXT smartcard IRPs to corrupt heap memory or crash clients using smartcard emulation.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-04 18:25 UTC
CWE
- CWE-416 - Use After Free
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-befo… | third-party-advisory |
Impacted products
Date Public
2026-10-20 00:00
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CVE-2026-121954 (GCVE-0-2026-121954)
Vulnerability from cvelistv5 – Published: 2026-11-04 15:33 – Updated: 2026-11-04 18:34
VLAI
EPSS
VEX
Title
FreeRDP before 3.32.2 Heap Out-of-Bounds Write in Planar Codec
Summary
FreeRDP before 3.32.2 has a heap out-of-bounds write in the planar codec because freerdp_bitmap_planar_context_reset commits new dimensions before buffer reallocation succeeds, and a failed ResetGraphics is only logged. A malicious RDP server can send an oversized ResetGraphics PDU, then a GFX PLANAR command, to corrupt client heap memory and crash the client.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-04 18:31 UTC
CWE
- CWE-787 - Out-of-bounds Write
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-befo… | third-party-advisory |
Impacted products
Date Public
2026-10-20 00:00
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CVE-2026-121953 (GCVE-0-2026-121953)
Vulnerability from cvelistv5 – Published: 2026-11-04 15:33 – Updated: 2026-11-04 18:38
VLAI
EPSS
VEX
Title
FreeRDP before 3.32.2 Use-After-Free via rdpgfx Dynamic Virtual Channel Close
Summary
FreeRDP before 3.32.2 has a use-after-free in the client's rdpgfx dynamic virtual channel: a duplicate-name channel with a new ChannelId overwrites the listener's single callback slot, which rdpgfx_on_close frees without clearing. A malicious RDP server can open and close such a channel, then send a PDU on the original channel to crash the client or potentially execute code.
Severity
9.8 (Critical)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-04 18:37 UTC
CWE
- CWE-416 - Use After Free
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-befo… | third-party-advisory |
Impacted products
Date Public
2026-10-20 00:00
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CVE-2026-121952 (GCVE-0-2026-121952)
Vulnerability from cvelistv5 – Published: 2026-11-04 15:33 – Updated: 2026-11-04 18:41
VLAI
EPSS
VEX
Title
FreeRDP before 3.32.2 Proxy Out-of-Bounds Write via Bitmap Cache v2 Capability
Summary
FreeRDP before 3.32.2 has an out-of-bounds write in the proxy because rdp_read_bitmap_cache_v2_capability_set rejects only numCellCaches values above 5, yet the bitmap cache v2 cell array is later accessed at fixed indices 0 through 4. A client connecting to the proxy can declare fewer than five cell caches in its Confirm Active, causing heap corruption, heap data leakage to the backend, or a crash.
Severity
9.8 (Critical)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-04 18:40 UTC
CWE
- CWE-787 - Out-of-bounds Write
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-befo… | third-party-advisory |
Impacted products
Date Public
2026-10-20 00:00
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CVE-2026-121951 (GCVE-0-2026-121951)
Vulnerability from cvelistv5 – Published: 2026-11-04 15:33 – Updated: 2026-11-04 18:40
VLAI
EPSS
VEX
Title
FreeRDP 3.0.0 before 3.32.2 Denial of Service via Slow-Path Input Event
Summary
FreeRDP 3.0.0 before 3.32.2 server-side RDP peer input parsing skips the six-byte body of a slow-path input event with an unknown message type without checking it lies within the packet's declared length, causing a WinPR stream assertion failure. A remote RDP client with an active session can send a truncated unknown input event to abort assertion-enabled server processes, causing denial of service.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-04 18:39 UTC
CWE
- CWE-617 - Reachable Assertion
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-3.0.… | third-party-advisory |
Impacted products
Date Public
2026-10-20 00:00
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CVE-2026-121950 (GCVE-0-2026-121950)
Vulnerability from cvelistv5 – Published: 2026-11-04 15:33 – Updated: 2026-11-04 18:42
VLAI
EPSS
VEX
Title
FreeRDP before 3.32.2 Heap Overflow via RDPGFX CREATE_SURFACE Integer Wrap
Summary
FreeRDP before 3.32.2 does not check the product of surface dimensions in gdi_CreateSurface when handling an RDPGFX CREATE_SURFACE PDU, causing an integer wrap and heap buffer overflow on 32-bit builds and an approximately 4 GiB allocation on 64-bit builds. A malicious RDP server can send a CREATE_SURFACE PDU with width and height 32766 to a connecting client to corrupt heap memory or cause a denial of service.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-04 18:42 UTC
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-befo… | third-party-advisory |
Impacted products
Date Public
2026-10-20 00:00
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CVE-2026-121412 (GCVE-0-2026-121412)
Vulnerability from cvelistv5 – Published: 2026-11-03 14:28 – Updated: 2026-11-03 18:30
VLAI
EPSS
VEX
Title
FreeRDP 3.0.0 before 3.32.2 Proxy Memory Exhaustion via DVC Reassembly
Summary
FreeRDP from 3.0.0 before 3.32.2 contains an uncontrolled resource consumption vulnerability in the proxy that lets connected clients retain heap memory via intercepted DVC message reassembly. Attackers can declare a large DATA_FIRST length and keep sending fragments without completing the message, growing proxy memory proportional to traffic and degrading service.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-03 17:22 UTC
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-3.0.… | third-party-advisory |
Impacted products
Date Public
2026-10-19 00:00
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CVE-2026-121411 (GCVE-0-2026-121411)
Vulnerability from cvelistv5 – Published: 2026-11-03 14:28 – Updated: 2026-11-09 14:48
VLAI
EPSS
VEX
Title
FreeRDP before 3.32.2 X11 Client Abort via RDPGFX Scaled Output Geometry
Summary
FreeRDP before 3.32.2 fails to bound server-supplied target dimensions and output origin in RDPGFX MAPSURFACETOSCALEDOUTPUT PDUs, allowing malicious RDP servers to abort X11 clients. Attackers can map a surface to oversized scaled output, triggering checked UINT16 cast or freerdp_image_scale stride assertion failures that terminate the client.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-09 14:47 UTC
CWE
- CWE-20 - Improper Input Validation
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
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Impacted products
Date Public
2026-10-19 00:00
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CVE-2026-121410 (GCVE-0-2026-121410)
Vulnerability from cvelistv5 – Published: 2026-11-03 14:28 – Updated: 2026-11-07 02:53
VLAI
EPSS
VEX
Title
FreeRDP before 3.32.2 Denial of Service via RDPGFX ALPHA WIRETOSURFACE_2
Summary
FreeRDP before 3.32.2 contains a denial of service vulnerability in the RDPGFX ALPHA WIRETOSURFACE_2 handler that fails to validate zero surface dimensions. A malicious RDP server can send a crafted WIRETOSURFACE_2 PDU with zero width and height, triggering an assertion or division by zero that terminates the client session.
Severity
4.3 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-07 02:53 UTC
CWE
- CWE-369 - Divide By Zero
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-befo… | third-party-advisory |
Impacted products
Date Public
2026-10-19 00:00
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CVE-2026-121409 (GCVE-0-2026-121409)
Vulnerability from cvelistv5 – Published: 2026-11-03 14:28 – Updated: 2026-11-03 17:13
VLAI
EPSS
VEX
Title
FreeRDP before 3.32.2 Denial of Service via Oversized X.224 Routing Token
Summary
FreeRDP before 3.32.2 contains a denial of service vulnerability that allows malicious servers or unauthenticated peers to abort clients or proxies via oversized X.224 routing tokens. Attackers can send an oversized LoadBalanceInfo in a Server Redirection PDU, or a 240–247 byte token to a FixedTarget freerdp-proxy, triggering a tpdu_write_header assertion that crashes the process.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-03 17:12 UTC
CWE
- CWE-617 - Reachable Assertion
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-befo… | third-party-advisory |
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Date Public
2026-10-19 00:00
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CVE-2026-121408 (GCVE-0-2026-121408)
Vulnerability from cvelistv5 – Published: 2026-11-03 14:28 – Updated: 2026-11-03 18:30
VLAI
EPSS
VEX
Title
FreeRDP before 3.32.2 Use-After-Free via USB Redirection Control Channel
Summary
FreeRDP before 3.32.2 contains a use-after-free in the urbdrc USB redirection channel because FindChannelById returns a channel pointer without a reference and the control-channel close path does not take the device manager's loading_lock. A malicious RDP server can send a control-channel CLOSE_REQUEST while the client announces a USB device, freeing the channel before the announcement thread reads channel->Write and crashing the client.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-03 17:22 UTC
CWE
- CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-befo… | third-party-advisory |
Impacted products
Date Public
2026-10-19 00:00
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CVE-2026-121407 (GCVE-0-2026-121407)
Vulnerability from cvelistv5 – Published: 2026-11-03 14:28 – Updated: 2026-11-09 14:44
VLAI
EPSS
VEX
Title
FreeRDP before 3.32.2 Shadow Server Denial of Service via remdesk Channel
Summary
FreeRDP before 3.32.2 contains a denial of service vulnerability in the shadow server's remdesk_server_thread that allows authenticated clients to crash the process via an inverted PDU length check. Attackers can send an 8192-byte remdesk payload declaring an eight-byte PDU length to trigger a fatal Stream_Seek assertion, aborting the server and dropping sessions.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-09 14:44 UTC
CWE
- CWE-20 - Improper Input Validation
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-befo… | third-party-advisory |
Impacted products
Date Public
2026-10-19 00:00
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CVE-2026-121406 (GCVE-0-2026-121406)
Vulnerability from cvelistv5 – Published: 2026-11-03 14:28 – Updated: 2026-11-07 02:52
VLAI
EPSS
VEX
Title
FreeRDP before 3.32.2 Client Denial of Service via Zero-Output ZGFX Payload
Summary
FreeRDP before 3.32.2 allows a client assertion abort because rdpgfx_on_data_received rejects only negative zgfx_decompress status and passes the resulting null output pointer to Stream_StaticConstInit. A malicious RDP server can send a zero-output ZGFX payload on the RDPGFX channel after session activation to terminate the client.
Severity
4.3 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-07 02:52 UTC
CWE
- CWE-617 - Reachable Assertion
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-befo… | third-party-advisory |
Impacted products
Date Public
2026-10-19 00:00
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CVE-2026-121405 (GCVE-0-2026-121405)
Vulnerability from cvelistv5 – Published: 2026-11-03 14:28 – Updated: 2026-11-03 17:14
VLAI
EPSS
VEX
Title
FreeRDP before 3.32.2 Memory Exhaustion via Serial RDPDR Device Control
Summary
FreeRDP before 3.32.2 fails to cap the OutputBufferLength in serial device-control IRP requests, allowing malicious servers to trigger excessive memory allocation. Attackers running a server with serial redirection can send an IRP_MJ_DEVICE_CONTROL request with IOCTL_USBPRINT_GET_1284_ID and a near-maximum length to exhaust client memory.
Severity
4.3 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-03 17:13 UTC
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-befo… | third-party-advisory |
Impacted products
Date Public
2026-10-19 00:00
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CVE-2026-121404 (GCVE-0-2026-121404)
Vulnerability from cvelistv5 – Published: 2026-11-03 14:28 – Updated: 2026-11-03 18:30
VLAI
EPSS
VEX
Title
FreeRDP before 3.32.2 Shadow Server CPU Exhaustion via Zero-Length DVC DATA
Summary
FreeRDP before 3.32.2 contains a denial of service vulnerability in the shadow server that allows authenticated RDP clients to spin server threads by sending zero-length drdynvc DATA PDUs. Attackers can send empty DATA messages on opened audin or rdpgfx channels, so that FreeRDP_WTSVirtualChannelRead never consumes them, consuming full CPU cores until disconnect.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-03 17:22 UTC
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-befo… | third-party-advisory |
Impacted products
Date Public
2026-10-19 00:00
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CVE-2026-121403 (GCVE-0-2026-121403)
Vulnerability from cvelistv5 – Published: 2026-11-03 14:28 – Updated: 2026-11-09 14:42
VLAI
EPSS
VEX
Title
FreeRDP before 3.32.2 Denial of Service via Malformed Drive IRP
Summary
FreeRDP before 3.32.2 contains a denial of service vulnerability where a malformed drive DEVICE_IOREQUEST with a truncated IRP_MJ_CREATE body silently kills the drive worker. A malicious RDP server can send such an IRP then post further requests that accumulate unbounded in the IrpQueue, exhausting memory and causing session availability loss.
Severity
4.3 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-09 14:41 UTC
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
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Impacted products
Date Public
2026-10-19 00:00
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CVE-2026-121402 (GCVE-0-2026-121402)
Vulnerability from cvelistv5 – Published: 2026-11-03 14:28 – Updated: 2026-11-07 02:51
VLAI
EPSS
VEX
Title
FreeRDP before 3.32.2 X11 Client Crash via Zero-Width RDPGFX ResetGraphics
Summary
FreeRDP before 3.32.2 contains a NULL pointer dereference vulnerability that allows malicious RDP servers to crash xfreerdp clients by sending a zero-width RDPGFX ResetGraphics PDU. The failed resize in gdi_resize_ex leaves the primary display null without ending the session, so a later bitmap update crashes the client in gdi_Bitmap_Paint.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-07 02:51 UTC
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-befo… | third-party-advisory |
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Date Public
2026-10-19 00:00
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CVE-2026-121401 (GCVE-0-2026-121401)
Vulnerability from cvelistv5 – Published: 2026-11-03 14:28 – Updated: 2026-11-03 16:08
VLAI
EPSS
VEX
Title
FreeRDP before 3.32.2 Denial of Service via RD Gateway extended-auth packet
Summary
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Severity
4.3 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-03 16:07 UTC
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-befo… | third-party-advisory |
Impacted products
Date Public
2026-10-19 00:00
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CVE-2026-121400 (GCVE-0-2026-121400)
Vulnerability from cvelistv5 – Published: 2026-11-03 14:28 – Updated: 2026-11-03 18:31
VLAI
EPSS
VEX
Title
FreeRDP before 3.32.2 CPU Exhaustion via RDG Control Packet
Summary
FreeRDP before 3.32.2 contains a denial-of-service vulnerability in rdg_process_control_packet that allows a malicious RD Gateway to exhaust client CPU by sending an incomplete keepalive control packet. Attackers completing the RDG tunnel-open exchange then send an eight-byte header with packetLength 0xFFFF and withhold the body, causing an unbounded no-progress read loop that spins one client thread at full CPU.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-03 17:51 UTC
CWE
- CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-befo… | third-party-advisory |
Impacted products
Date Public
2026-10-19 00:00
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CVE-2026-121399 (GCVE-0-2026-121399)
Vulnerability from cvelistv5 – Published: 2026-11-03 14:28 – Updated: 2026-11-09 14:38
VLAI
EPSS
VEX
Title
FreeRDP before 3.32.2 Memory Exhaustion via RD Gateway Packet Length
Summary
FreeRDP before 3.32.2 contains a memory allocation vulnerability in rdg_receive_packet that allows a malicious RD Gateway to force a 2 GiB client allocation before tunnel authentication. Attackers can send an eight-byte RDG header declaring packet length 0x7FFFFFFF to trigger pre-authentication memory exhaustion and denial of service.
Severity
4.3 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-09 14:37 UTC
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-befo… | third-party-advisory |
Impacted products
Date Public
2026-10-19 00:00
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