Common Weakness Enumeration
CWE-416
AllowedUse After Free
Abstraction: Variant · Status: Stable
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
3573 vulnerabilities reference this CWE, most recent first.
CVE-2026-118445 (GCVE-0-2026-118445)
Vulnerability from cvelistv5 – Published: 2026-11-03 09:00 – Updated: 2026-11-03 18:32 Unsupported When Assigned
VLAI
EPSS
VEX
Title
Use-after-free in INSTRUX structure members in pybddisasm
Summary
A use-after-free vulnerability in the pybddisasm Python bindings affects structure-valued members of INSTRUX objects. These members are exposed through Python objects that reference memory owned by the parent INSTRUX object. A retained reference to a member does not keep the parent allocation alive. Accessing the member after the parent INSTRUX object has been freed therefore accesses freed memory. Depending on how the member is used and whether the freed allocation has been reused, this may expose process memory or cause the Python process to crash. Exploitation requires an application to retain and subsequently access a member reference after the parent object has been freed. The pybddisasm package is no longer maintained.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-03 17:24 UTC
CWE
- CWE-416 - Use After Free
Assigner
Bitdefender
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://pypi.org/project/pybddisasm/ |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Bitdefender | pybddisasm |
Affected:
0 , ≤ 0.3.0
(python)
|
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CVE-2026-116540 (GCVE-0-2026-116540)
Vulnerability from cvelistv5 – Published: 2026-10-26 14:59 – Updated: 2026-10-26 16:15
VLAI
EPSS
VEX
Title
netty-tcnative 2.0.66.Final before 2.0.84.Final Use-After-Free in Session Ticket Callback
Summary
netty-tcnative 2.0.66.Final before 2.0.84.Final built against OpenSSL 3.x contains a use-after-free vulnerability in ssl_tlsext_ticket_key_cb during session ticket key rotation. Remote clients performing TLS handshakes while setSessionTicketKeys0 frees the shared key array cause OpenSSL to read freed HMAC keys, crashing or corrupting ticket processing.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-26 15:38 UTC
CWE
- CWE-416 - Use After Free
Assigner
VulnCheck
CNA
References
6 references
| URL | Tags |
|---|---|
| https://github.com/netty/netty-tcnative/security/… | vendor-advisory |
| https://github.com/netty/netty-tcnative/commit/59… | patch |
| https://github.com/netty/netty-tcnative/blob/nett… | technical-description |
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1 product
| Vendor | Product | Version | |
|---|---|---|---|
| netty | netty-tcnative |
Affected:
2.0.66.Final , < 2.0.84.Final
(custom)
|
Date Public
2026-08-06 00:00
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CVE-2026-115379 (GCVE-0-2026-115379)
Vulnerability from cvelistv5 – Published: 2026-10-22 19:13 – Updated: 2026-11-04 15:12
VLAI
EPSS
VEX
Title
Wasmtime 47.0.0 before 48.0.4 and 49.0.0 before 49.0.2 GC Heap Corruption via try_call
Summary
Wasmtime 47.0.0 before 48.0.4 and 49.0.0 before 49.0.2 contains a missing GC rooting vulnerability that leaves references live across try_call unrooted when compiling Wasm modules. Attackers can supply Wasm modules whose callee triggers garbage collection, leaving stale or dangling references that cause GC heap corruption or incorrect execution.
Severity
5.7 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-04 15:11 UTC
CWE
- CWE-416 - Use After Free
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/bytecodealliance/wasmtime/secu… | vendor-advisory |
| https://www.vulncheck.com/advisories/wasmtime-47.… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| bytecodealliance | wasmtime |
Affected:
47.0.0 , < 48.0.4
(semver)
Unaffected: 48.0.4 (semver) Affected: 49.0.0 , < 49.0.2 (semver) Unaffected: 49.0.2 (semver) cpe:2.3:a:bytecodealliance:wasmtime:*:*:*:*:*:*:*:* cpe:2.3:a:bytecodealliance:wasmtime:*:*:*:*:*:*:*:* |
Date Public
2026-10-02 00:00
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CVE-2026-114111 (GCVE-0-2026-114111)
Vulnerability from cvelistv5 – Published: 2026-10-21 00:37 – Updated: 2026-10-28 13:49
VLAI
EPSS
VEX
Title
Sharp before 0.35.5 RCE via librsvg Dependency Memory Vulnerability
Summary
sharp before 0.35.5 bundles a librsvg dependency affected by a memory-related vulnerability (CVE-2026-96889) that, under certain runtime-specific conditions, can lead to code execution on glibc-based Linux. An attacker can supply a crafted SVG image that, when decoded by sharp through librsvg, may result in arbitrary code execution.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-28 13:49 UTC
CWE
- CWE-416 - Use After Free
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/lovell/sharp/security/advisori… | vendor-advisory |
| https://www.vulncheck.com/advisories/sharp-before… | third-party-advisory |
Impacted products
Date Public
2026-09-30 00:00
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CVE-2026-114042 (GCVE-0-2026-114042)
Vulnerability from cvelistv5 – Published: 2026-10-21 00:36 – Updated: 2026-10-22 18:23
VLAI
EPSS
VEX
Title
FreeRDP 3.32.0 Use-After-Free via drdynvc Virtual Channel PDU
Summary
FreeRDP 3.32.0 contains a use-after-free vulnerability in the drdynvc channel that frees a pool-owned stream with the owned-stream deallocator when totalLength is smaller than the chunk size. A malicious RDP server can send a single well-formed Virtual Channel PDU to trigger the free and crash the client during teardown.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-22 18:22 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-3.32… | third-party-advisory |
Impacted products
Date Public
2026-10-05 00:00
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CVE-2026-113421 (GCVE-0-2026-113421)
Vulnerability from cvelistv5 – Published: 2026-11-03 08:27 – Updated: 2026-11-03 20:10
VLAI
EPSS
VEX
Title
ThreadX Modules invokes trace-full callbacks after module unload
Summary
In Eclipse ThreadX versions 6.0.1 through 6.5.2.202603, ThreadX Modules does not revoke a module's trace-buffer-full callback when the module is stopped and unloaded. With event tracing enabled and a kernel-owned trace buffer still active, a later buffer wrap invokes the callback from privileged thread context after the module's code has been released, so a user-mode module can have its code run with kernel privileges after unload, or, once the memory is reused, redirect control flow or cause a fault.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-03 20:10 UTC
CWE
- CWE-416 - Use after free
Assigner
eclipse
CNA
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Eclipse Foundation | Eclipse ThreadX |
Affected:
6.0.1 , ≤ 6.5.2.202603
(custom)
|
Date Public
2026-11-03 08:27
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CVE-2026-112402 (GCVE-0-2026-112402)
Vulnerability from cvelistv5 – Published: 2026-10-19 21:18 – Updated: 2026-10-19 21:37
VLAI
EPSS
VEX
Title
Pillow: Double free in ImagingScaleAffine on calloc failure via Image.transform
Summary
Pillow is a Python imaging library. Prior to 13.0.0, Pillow can double free image memory when ImagingScaleAffine encounters a selective allocation failure. The affected fast path handles Transform.EXTENT or pure scale-and-translate Transform.AFFINE operations with the default NEAREST resampling. The output image allocation must succeed while the additional per-column lookup allocation fails, after which the error path deletes image storage that later cleanup releases again. An attacker who can drive such a large Image.transform() operation under memory pressure may trigger the failure. This can crash the process and may corrupt memory. This issue is fixed in version 13.0.0.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-19 21:37 UTC
CWE
- CWE-416 - Use After Free
Assigner
GitHub_M
CNA
References
3 references
| URL | Tags |
|---|---|
| https://github.com/python-pillow/Pillow/security/… | x_refsource_CONFIRM |
| https://github.com/python-pillow/Pillow/commit/aa… | x_refsource_MISC |
| https://github.com/python-pillow/Pillow/releases/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| python-pillow | Pillow |
Affected:
< 13.0.0
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CVE-2026-112396 (GCVE-0-2026-112396)
Vulnerability from cvelistv5 – Published: 2026-10-19 21:02 – Updated: 2026-10-20 16:09
VLAI
EPSS
VEX
Title
Pillow: Heap use-after-free when encoding TIFF to an in-memory buffer
Summary
Pillow is a Python imaging library. From 11.3.0 until 13.0.0, Pillow has a heap use-after-free when libtiff rejects a tag while encoding TIFF data to an in-memory buffer. When an application saves attacker-influenced TIFF tags to BytesIO, libtiff can reject a tag during encoding in ImagingLibTiffEncode; the error path then frees the output buffer without closing or clearing the TIFF handle, and later cleanup flushes through the write callback into freed memory, which can crash the process and may enable code execution. This issue is fixed in version 13.0.0.
Severity
5.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-20 15:10 UTC
CWE
- CWE-416 - Use After Free
Assigner
GitHub_M
CNA
References
3 references
| URL | Tags |
|---|---|
| https://github.com/python-pillow/Pillow/security/… | x_refsource_CONFIRM |
| https://github.com/python-pillow/Pillow/commit/dc… | x_refsource_MISC |
| https://github.com/python-pillow/Pillow/releases/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| python-pillow | Pillow |
Affected:
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CVE-2026-112261 (GCVE-0-2026-112261)
Vulnerability from cvelistv5 – Published: 2026-10-19 21:37 – Updated: 2026-11-04 21:54
VLAI
EPSS
VEX
Title
Gimp: gimp: use-after-free in xcf loader via prop_selected_path
Summary
A flaw was found in GIMP. Opening a crafted XCF that selects a path and then fails to load that path can cause a use-after-free in the main process, leading to a crash and potentially arbitrary code execution.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-20 15:16 UTC
CWE
- CWE-416 - Use After Free
Assigner
redhat
CNA
References
3 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2026:93975 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2026-112261 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2555748 | issue-trackingx_refsource_REDHAT |
Impacted products
5 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
2:3.0.4-4.el9_8.15 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:9::appstream |
|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/a:redhat:enterprise_linux:10
|
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:rhel_els:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:rhel_els:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/a:redhat:enterprise_linux:8
|
Date Public
2026-10-12 00:00
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CVE-2026-112258 (GCVE-0-2026-112258)
Vulnerability from cvelistv5 – Published: 2026-10-19 21:37 – Updated: 2026-11-04 21:54
VLAI
EPSS
VEX
Title
Gimp: gimp: use-after-free in xcf loader via prop_linked and prop_selection on channels
Summary
A flaw was found in GIMP. The XCF loader can leave a dangling pointer in the linked-channels list when a linked channel is later destroyed via a selection property. Opening a crafted XCF file can cause a use-after-free in the main GIMP process, leading to a crash and potentially arbitrary code execution.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-21 20:45 UTC
CWE
- CWE-416 - Use After Free
Assigner
redhat
CNA
References
3 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2026:93975 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2026-112258 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2555588 | issue-trackingx_refsource_REDHAT |
Impacted products
5 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
2:3.0.4-4.el9_8.15 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:9::appstream |
|
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cpe:/a:redhat:enterprise_linux:10
|
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:rhel_els:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:rhel_els:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/a:redhat:enterprise_linux:8
|
Date Public
2026-10-14 00:00
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Mitigation
Architecture and Design
Strategy: Language Selection
Choose a language that provides automatic memory management.
Mitigation
Implementation
Strategy: Attack Surface Reduction
When freeing pointers, be sure to set them to NULL once they are freed. However, the utilization of multiple or complex data structures may lower the usefulness of this strategy.
No CAPEC attack patterns related to this CWE.