Common Weakness Enumeration
CWE-787
Allowed-with-ReviewOut-of-bounds Write
Abstraction: Base · Status: Draft
The product writes data past the end, or before the beginning, of the intended buffer.
3475 vulnerabilities reference this CWE, most recent first.
CVE-2026-110680 (GCVE-0-2026-110680)
Vulnerability from cvelistv5 – Published: 2026-10-19 18:12 – Updated: 2026-10-30 11:03
VLAI
EPSS
VEX
Title
Cpanel::JSON::XS versions from 4.20 before 4.80 for Perl write out of bounds when a tied or shared hash grows during canonical encoding in encode_hv
Summary
Cpanel::JSON::XS versions from 4.20 before 4.80 for Perl write out of bounds when a tied or shared hash grows during canonical encoding in encode_hv.
With canonical, the keys of a tied or threads::shared hash are counted before a second pass collects them for sorting. The encoder uses a fixed 64-entry stack array or, for larger counts, a heap array sized from the first pass. If the second pass exceeds that capacity, entries are written out of bounds before the counts are compared.
This corrupts stack or heap memory and can crash the process.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-30 11:02 UTC
CWE
- CWE-787 - Out-of-bounds Write
Assigner
CPANSec
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/rurban/Cpanel-JSON-XS/commit/4… | patch |
| https://metacpan.org/release/RURBAN/Cpanel-JSON-X… | release-notes |
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CVE-2026-110654 (GCVE-0-2026-110654)
Vulnerability from cvelistv5 – Published: 2026-10-14 15:01 – Updated: 2026-10-20 01:26
VLAI
EPSS
VEX
Title
libzvbi through 0.2.45 Out-of-Bounds Write via Teletext DRCS convert_drcs
Summary
libzvbi through 0.2.45 contains an out-of-bounds write vulnerability in the Teletext decoder that allows attackers to corrupt memory by supplying unvalidated DRCS pixel-mode values in X/28/3 packets. Attackers can send a crafted Teletext stream decoded via vbi_decode with every slot set to DRCS_MODE_6_5_4, causing convert_drcs to overflow chars[48][60] and crash the application.
Severity
6.1 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-20 01:25 UTC
CWE
- CWE-787 - Out-of-bounds Write
Assigner
VulnCheck
CNA
References
4 references
| URL | Tags |
|---|---|
| https://hackmd.io/@haind-pwn/zvbi-teletext-drcs-m… | technical-descriptionexploit |
| https://github.com/zapping-vbi/zvbi/blob/d3a5ee9f… | technical-description |
| https://github.com/zapping-vbi/zvbi | product |
| https://www.vulncheck.com/advisories/libzvbi-thro… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| zapping-vbi | libzvbi |
Affected:
0 , ≤ 0.2.45
(semver)
|
Date Public
2026-10-14 00:00
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CVE-2026-110601 (GCVE-0-2026-110601)
Vulnerability from cvelistv5 – Published: 2026-10-14 14:16 – Updated: 2026-10-20 01:04
VLAI
EPSS
VEX
Title
libsixel before 1.8.7-r1 and 1.9.0 through 1.10.5 Heap Out-of-Bounds Write via GIF
Summary
libsixel before 1.8.7-r1 and 1.9.0 through 1.10.5 contains a heap out-of-bounds write vulnerability in gif_init_frame() in src/fromgif.c, which never checks the GIF transparent color index against the palette size. Attackers can supply a crafted GIF with a small color table and large transparent index, processed with a background color set, to write bytes past the palette buffer, causing heap corruption or crashes.
Severity
6.3 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-20 01:03 UTC
CWE
- CWE-787 - Out-of-bounds Write
Assigner
VulnCheck
CNA
References
7 references
| URL | Tags |
|---|---|
| https://github.com/saitoha/libsixel/issues/220 | issue-tracking |
| https://github.com/saitoha/libsixel/commit/bdbab0… | patch |
| https://github.com/saitoha/libsixel/releases/tag/… | release-notes |
| https://github.com/saitoha/libsixel/blob/v1.8.7/s… | technical-description |
| https://github.com/libsixel/libsixel/blob/v1.10.5… | technical-description |
| https://hackmd.io/@haind-pwn/libsixel-gif-transpa… | third-party-advisory |
| https://www.vulncheck.com/advisories/libsixel-bef… | third-party-advisory |
Impacted products
Date Public
2026-03-04 00:00
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CVE-2026-109976 (GCVE-0-2026-109976)
Vulnerability from cvelistv5 – Published: 2026-10-13 12:17 – Updated: 2026-11-06 17:50
VLAI
EPSS
VEX
Title
Clevis: clevis: integer underflow in pkcs#11 data socket handler crashes daemon on unbound client connection
Summary
A flaw was found in the clevis PKCS#11 pin. The clevis-pkcs11-afunix-socket-unlock daemon crashes when an AF_UNIX client connects to the data socket without a bound address, due to an integer underflow in the getpeername result handling. This causes a denial of service, preventing LUKS disk decryption from completing during boot.
Severity
4.7 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-14 17:27 UTC
CWE
- CWE-787 - Out-of-bounds Write
Assigner
redhat
CNA
References
2 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-109976 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2550375 | issue-trackingx_refsource_REDHAT |
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/a:redhat:enterprise_linux:10
|
|
| 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
|
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/a:redhat:enterprise_linux:9
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4
|
|
| Red Hat | Red Hat OpenShift Container Platform 5 |
cpe:/a:redhat:openshift:5
|
Date Public
2026-10-13 00:00
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CVE-2026-109831 (GCVE-0-2026-109831)
Vulnerability from cvelistv5 – Published: 2026-10-20 04:34 – Updated: 2026-10-20 19:15
VLAI
EPSS
VEX
Summary
UnRTF by GNU Project is vulnerable to out-of-bounds write. If a user opens an RTF file crafted by an attacker, it may lead to a denial-of-service (DoS) condition.
Severity
5.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-20 19:15 UTC
CWE
- CWE-787 - Out-of-bounds Write
Assigner
jpcert
CNA
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| GNU Project | UnRTF |
Affected:
0 , < 0.21.12
(semver)
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CVE-2026-109827 (GCVE-0-2026-109827)
Vulnerability from cvelistv5 – Published: 2026-10-13 16:45 – Updated: 2026-10-15 15:11 X_Open Source
VLAI
EPSS
VEX
Title
GPAC AIT Parser ait.c gf_m2ts_decode_ait out-of-bounds write
Summary
A vulnerability has been found in GPAC up to 26.07.0. This vulnerability affects the function gf_m2ts_decode_ait of the file src/media_tools/ait.c of the component AIT Parser. Such manipulation leads to out-of-bounds write. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The name of the patch is 6d2c21a1a688abb20d0111b608db3b6f44d348f4. Applying a patch is advised to resolve this issue.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-15 14:52 UTC
Assigner
VulDB
CNA
References
9 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/417465 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/417465/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-109827 | third-party-advisory |
| https://vuldb.com/submit/1001680 | third-party-advisory |
| https://github.com/gpac/gpac/issues/3930 | issue-tracking |
| https://github.com/gpac/gpac/pull/3932 | issue-trackingpatch |
| https://www.mediafire.com/file/zbpfhkgaf18cntf/po… | exploit |
| https://github.com/gpac/gpac/commit/6d2c21a1a688a… | patch |
| https://github.com/gpac/gpac/ | product |
Impacted products
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CVE-2026-109680 (GCVE-0-2026-109680)
Vulnerability from cvelistv5 – Published: 2026-10-13 13:27 – Updated: 2026-10-16 21:46
VLAI
EPSS
VEX
Title
FreeRDP 3.18.0 before 3.32.0 Heap Out-of-Bounds Write via ARM Redirected Username
Summary
FreeRDP 3.18.0 before 3.32.0 has a heap-based out-of-bounds write in freerdp_interruptible_get_line, which shrinks the buffer to 32 bytes while keeping a pre-filled suggested username's length as its write offset. A malicious or compromised ARM routing service can return a long redirectedUsername that reaches the CLI credential prompt, crashing the client when the user types input.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 21:46 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-3.18… | third-party-advisory |
Impacted products
Date Public
2026-09-29 00:00
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CVE-2026-109588 (GCVE-0-2026-109588)
Vulnerability from cvelistv5 – Published: 2026-10-16 17:09 – Updated: 2026-10-20 18:08
VLAI
EPSS
VEX
Title
Numeric truncation in the MPU buffer authorization check in FreeRTOS-Kernel
Summary
Numeric truncation of the buffer length in the MPU buffer authorization check in FreeRTOS-Kernel V11.3.0 and V11.3.1 on the Arm Cortex-R82 (Armv8-R AArch64) MPU port might allow, under certain conditions, an unprivileged task on MPU-enabled builds to read or write privileged kernel memory beyond the validated buffer window, via a stream buffer system call.
To remediate this issue, users should upgrade to version V11.3.2 or later.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-20 17:30 UTC
Assigner
AMZN
CNA
References
3 references
| URL | Tags |
|---|---|
| https://github.com/FreeRTOS/FreeRTOS-Kernel/relea… | release-notespatch |
| https://aws.amazon.com/security/security-bulletin… | vendor-advisory |
| https://github.com/FreeRTOS/FreeRTOS-Kernel/secur… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| FreeRTOS | FreeRTOS-Kernel |
Affected:
11.3.0 , ≤ 11.3.1
(custom)
cpe:2.3:a:freertos:freertos-kernel:*:*:*:*:*:*:*:* |
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CVE-2026-109576 (GCVE-0-2026-109576)
Vulnerability from cvelistv5 – Published: 2026-10-20 20:16 – Updated: 2026-10-29 18:50
VLAI
EPSS
VEX
Title
HMS Networks PEAK-System PCAN Windows drivers Out-of-bounds Write
Summary
The parser in PEAK-System PCAN driver correctly detected the malformed record, but the loop iterating the record list advanced its processed-bytes counter even when a record had been rejected as invalid.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-29 18:48 UTC
CWE
Assigner
icscert
CNA
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| HMS Networks | PEAK-System Device Driver Setup |
Affected:
0 , ≤ 5.1.2.1151
(custom)
Unaffected: 5.1.4 |
|
| HMS Networks | PCAN Windows CAN device drivers |
Affected:
0 , ≤ 5.1.2
(custom)
Unaffected: 5.1.4 |
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CVE-2026-108985 (GCVE-0-2026-108985)
Vulnerability from cvelistv5 – Published: 2026-10-12 03:00 – Updated: 2026-10-13 14:24
VLAI
EPSS
VEX
Summary
ZDR decoding in libnfs through 6.0.2 before 7613236 has an out-of-bounds write related to lib/libnfs-zdr.c with libnfs_zdr_bytes(), libnfs_zdr_string(), and libnfs_zdr_array(). The caller-supplied maxsize value is not honored.
Severity
7.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 14:23 UTC
CWE
- CWE-787 - Out-of-bounds Write
Assigner
mitre
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/sahlberg/libnfs/commit/7613236… | patch |
Impacted products
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Mitigation MIT-3
Requirements
Strategy: Language Selection
- Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
- For example, many languages that perform their own memory management, such as Java and Perl, are not subject to buffer overflows. Other languages, such as Ada and C#, typically provide overflow protection, but the protection can be disabled by the programmer.
- Be wary that a language's interface to native code may still be subject to overflows, even if the language itself is theoretically safe.
Mitigation MIT-4.1
Architecture and Design
Strategy: Libraries or Frameworks
- Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
- Examples include the Safe C String Library (SafeStr) by Messier and Viega [REF-57], and the Strsafe.h library from Microsoft [REF-56]. These libraries provide safer versions of overflow-prone string-handling functions.
Mitigation MIT-10
Operation
Build and Compilation
Strategy: Environment Hardening
- Use automatic buffer overflow detection mechanisms that are offered by certain compilers or compiler extensions. Examples include: the Microsoft Visual Studio /GS flag, Fedora/Red Hat FORTIFY_SOURCE GCC flag, StackGuard, and ProPolice, which provide various mechanisms including canary-based detection and range/index checking.
- D3-SFCV (Stack Frame Canary Validation) from D3FEND [REF-1334] discusses canary-based detection in detail.
Mitigation MIT-9
Implementation
- Consider adhering to the following rules when allocating and managing an application's memory:
- Double check that the buffer is as large as specified.
- When using functions that accept a number of bytes to copy, such as strncpy(), be aware that if the destination buffer size is equal to the source buffer size, it may not NULL-terminate the string.
- Check buffer boundaries if accessing the buffer in a loop and make sure there is no danger of writing past the allocated space.
- If necessary, truncate all input strings to a reasonable length before passing them to the copy and concatenation functions.
Mitigation MIT-11
Operation
Build and Compilation
Strategy: Environment Hardening
- Run or compile the software using features or extensions that randomly arrange the positions of a program's executable and libraries in memory. Because this makes the addresses unpredictable, it can prevent an attacker from reliably jumping to exploitable code.
- Examples include Address Space Layout Randomization (ASLR) [REF-58] [REF-60] and Position-Independent Executables (PIE) [REF-64]. Imported modules may be similarly realigned if their default memory addresses conflict with other modules, in a process known as "rebasing" (for Windows) and "prelinking" (for Linux) [REF-1332] using randomly generated addresses. ASLR for libraries cannot be used in conjunction with prelink since it would require relocating the libraries at run-time, defeating the whole purpose of prelinking.
- For more information on these techniques see D3-SAOR (Segment Address Offset Randomization) from D3FEND [REF-1335].
Mitigation MIT-12
Operation
Strategy: Environment Hardening
- Use a CPU and operating system that offers Data Execution Protection (using hardware NX or XD bits) or the equivalent techniques that simulate this feature in software, such as PaX [REF-60] [REF-61]. These techniques ensure that any instruction executed is exclusively at a memory address that is part of the code segment.
- For more information on these techniques see D3-PSEP (Process Segment Execution Prevention) from D3FEND [REF-1336].
Mitigation MIT-13
Implementation
Replace unbounded copy functions with analogous functions that support length arguments, such as strcpy with strncpy. Create these if they are not available.
No CAPEC attack patterns related to this CWE.