CWE-787
Out-of-bounds Write
The product writes data past the end, or before the beginning, of the intended buffer.
CVE-2026-32861 (GCVE-0-2026-32861)
Vulnerability from cvelistv5 – Published: 2026-04-07 19:46 – Updated: 2026-04-08 03:55
VLAI
Title
Out-of-Bounds Write Vulnerability in NI LabVIEW when loading lvclass file
Summary
There is a memory corruption vulnerability due to an out-of-bounds write when loading a corrupted LVCLASS file in NI LabVIEW. This vulnerability may result in information disclosure or arbitrary code execution. Successful exploitation requires an attacker to get a user to open a specially crafted .lvclass file. This vulnerability affects NI LabVIEW 2026 Q1 (26.1.0) and prior versions.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-787 - Out-of-bounds write
Assigner
References
1 reference
Impacted products
Credits
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CVE-2026-32862 (GCVE-0-2026-32862)
Vulnerability from cvelistv5 – Published: 2026-04-07 19:50 – Updated: 2026-04-08 03:55
VLAI
Title
Out-of-Bounds Write in ResFileFactory::InitResourceMgr()
Summary
There is a memory corruption vulnerability due to an out-of-bounds write in ResFileFactory::InitResourceMgr() in NI LabVIEW. This vulnerability may result in information disclosure or arbitrary code execution. Successful exploitation requires an attacker to get a user to open a specially crafted VI file. This vulnerability affects NI LabVIEW 2026 Q1 (26.1.0) and prior versions.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-787 - Out-of-bounds write
Assigner
References
1 reference
Impacted products
Credits
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CVE-2026-32875 (GCVE-0-2026-32875)
Vulnerability from cvelistv5 – Published: 2026-03-20 01:35 – Updated: 2026-03-25 14:32
VLAI
Title
UltraJSON has an integer overflow handling large indent leads to buffer overflow or infinite loop
Summary
UltraJSON is a fast JSON encoder and decoder written in pure C with bindings for Python 3.7+. Versions 5.10 through 5.11.0 are vulnerable to buffer overflow or infinite loop through large indent handling. ujson.dumps() crashes the Python interpreter (segmentation fault) when the product of the indent parameter and the nested depth of the input exceeds INT32_MAX. It can also get stuck in an infinite loop if the indent is a large negative number. Both are caused by an integer overflow/underflow whilst calculating how much memory to reserve for indentation. And both can be used to achieve denial of service. To be vulnerable, a service must call ujson.dump()/ujson.dumps()/ujson.encode() whilst giving untrusted users control over the indent parameter and not restrict that indentation to reasonably small non-negative values. A service may also be vulnerable to the infinite loop if it uses a fixed negative indent. An underflow always occurs for any negative indent when the input data is at least one level nested but, for small negative indents, the underflow is usually accidentally rectified by another overflow. This issue has been fixed in version 5.12.0.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/ultrajson/ultrajson/security/a… | x_refsource_CONFIRM |
| https://github.com/ultrajson/ultrajson/issues/700 | x_refsource_MISC |
| https://github.com/ultrajson/ultrajson/commit/486… | x_refsource_MISC |
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CVE-2026-3298 (GCVE-0-2026-3298)
Vulnerability from cvelistv5 – Published: 2026-04-21 14:45 – Updated: 2026-05-12 13:25
VLAI
Title
Out-of-bounds write in Windows asyncio.ProacterEventLoop.sock_recvfrom_into() when using nbytes
Summary
The method "sock_recvfrom_into()" of "asyncio.ProacterEventLoop" (Windows only) was missing a boundary check for the data buffer when using nbytes parameter. This allowed for an out-of-bounds buffer write if data was larger than the buffer size. Non-Windows platforms are not affected.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-787 - Out-of-bounds write
Assigner
References
6 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Python Software Foundation | CPython |
Affected:
3.11.0 , < 3.14.5rc1
(python)
Affected: 3.15.0a1 , < 3.15.0b1 (python) |
Credits
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CVE-2026-33144 (GCVE-0-2026-33144)
Vulnerability from cvelistv5 – Published: 2026-03-20 20:07 – Updated: 2026-03-20 21:22
VLAI
Title
GPAC MP4Box Heap Buffer Overflow Write in gf_xml_parse_bit_sequence_bs (NHML BS Parsing)
Summary
GPAC is an open-source multimedia framework. Prior to commit 86b0e36, a heap-based buffer overflow (write) vulnerability was discovered in GPAC MP4Box. The vulnerability exists in the gf_xml_parse_bit_sequence_bs function in utils/xml_bin_custom.c when processing a crafted NHML file containing malicious <BS> (BitSequence) elements. An attacker can exploit this by providing a specially crafted NHML file, causing an out-of-bounds write on the heap. This issue has been via commit 86b0e36.
Severity
5.8 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/gpac/gpac/security/advisories/… | x_refsource_CONFIRM |
| https://github.com/gpac/gpac/commit/86b0e36ea4c71… | x_refsource_MISC |
Impacted products
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CVE-2026-33165 (GCVE-0-2026-33165)
Vulnerability from cvelistv5 – Published: 2026-03-20 20:32 – Updated: 2026-03-24 18:48
VLAI
Title
heap out-of-bounds write in libde265 1.0.16
Summary
libde265 is an open source implementation of the h.265 video codec. Prior to version 1.0.17, a crafted HEVC bitstream causes an out-of-bounds heap write confirmed by AddressSanitizer. The trigger is a stale ctb_info.log2unitSize after an SPS change where PicWidthInCtbsY and PicHeightInCtbsY stay constant but Log2CtbSizeY changes, causing set_SliceHeaderIndex to index past the allocated image metadata array and write 2 bytes past the end of a heap allocation. This issue has been patched in version 1.0.17.
Severity
5.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/strukturag/libde265/security/a… | x_refsource_CONFIRM |
| https://github.com/strukturag/libde265/commit/c78… | x_refsource_MISC |
| https://github.com/strukturag/libde265/releases/t… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| strukturag | libde265 |
Affected:
< 1.0.17
|
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CVE-2026-33317 (GCVE-0-2026-33317)
Vulnerability from cvelistv5 – Published: 2026-04-24 02:20 – Updated: 2026-04-24 18:18
VLAI
Title
OP-TEE: PKCS#11 TA out-of-bounds read and memory disclosure
Summary
OP-TEE is a Trusted Execution Environment (TEE) designed as companion to a non-secure Linux kernel running on Arm; Cortex-A cores using the TrustZone technology. In versions 3.13.0 through 4.10.0, missing checks in `entry_get_attribute_value()` in `ta/pkcs11/src/object.c` can lead to out-of-bounds read from the PKCS#11 TA heap or a crash. When chained with the OOB read, the PKCS#11 TA function `PKCS11_CMD_GET_ATTRIBUTE_VALUE` or `entry_get_attribute_value()` can, with a bad template parameter, be tricked into reading at most 7 bytes beyond the end of the template buffer and writing beyond the end of the template buffer with the content of an attribute value of a PKCS#11 object. Commits e031c4e562023fd9f199e39fd2e85797e4cbdca9, 16926d5a46934c46e6656246b4fc18385a246900, and 149e8d7ecc4ef8bb00ab4a37fd2ccede6d79e1ca contain patches and are anticipated to be part of version 4.11.0.
Severity
8.7 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/OP-TEE/optee_os/security/advis… | x_refsource_CONFIRM |
| https://github.com/OP-TEE/optee_os/commit/149e8d7… | x_refsource_MISC |
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CVE-2026-3342 (GCVE-0-2026-3342)
Vulnerability from cvelistv5 – Published: 2026-03-03 13:17 – Updated: 2026-03-04 15:22
VLAI
Title
WatchGuard Firebox Out of Bounds Write Vulnerability
Summary
An Out-of-bounds Write vulnerability in WatchGuard Fireware OS may allow an authenticated privileged administrator to execute arbitrary code with root permissions via an exposed management interface.
This vulnerability affects Fireware OS 11.9 up to and including 11.12.4_Update1, 12.0 up to and including 12.11.7 and 2025.1 up to and including 2026.1.1.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| WatchGuard | Fireware OS |
Affected:
11.9 , ≤ 11.12.4+541730
(semver)
Affected: 12.0 , ≤ 12.11.7 (semver) Affected: 12.5 , ≤ 12.5.16 (semver) Affected: 2025.1 , ≤ 2026.1.1 (semver) |
Credits
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CVE-2026-33491 (GCVE-0-2026-33491)
Vulnerability from cvelistv5 – Published: 2026-03-26 18:39 – Updated: 2026-03-27 03:55
VLAI
Title
Zen-C has Stack-Based Buffer Overflow in Identifier Mangling
Summary
Zen C is a systems programming language that compiles to human-readable GNU C/C11. Prior to version 0.4.4, a stack-based buffer overflow vulnerability in the Zen C compiler allows attackers to cause a compiler crash or potentially execute arbitrary code by providing a specially crafted Zen C source file (`.zc`) with excessively long struct, function, or trait identifiers. Users are advised to update to Zen C version v0.4.4 or later to receive a patch.
Severity
7.8 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/zenc-lang/zenc/security/adviso… | x_refsource_CONFIRM |
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CVE-2026-33535 (GCVE-0-2026-33535)
Vulnerability from cvelistv5 – Published: 2026-03-26 19:52 – Updated: 2026-03-27 20:02
VLAI
Title
ImageMagick has an Out-of-Bounds write of a zero byte in its X11 display interaction
Summary
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to 7.1.2-18 and 6.9.13-43, an out-of-bounds write of a zero byte exists in the X11 `display` interaction path that could lead to a crash. Versions 7.1.2-18 and 6.9.13-43 patch the issue.
Severity
4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/ImageMagick/ImageMagick/securi… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ImageMagick | ImageMagick |
Affected:
< 7.1.2-18
Affected: < 6.9.13-43 |
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Mitigation ID: MIT-3
Phase: Requirements
Strategy: Language Selection
Description:
- 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 ID: MIT-4.1
Phase: Architecture and Design
Strategy: Libraries or Frameworks
Description:
- 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 ID: MIT-10
Phases: Operation, Build and Compilation
Strategy: Environment Hardening
Description:
- 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 ID: MIT-9
Phase: Implementation
Description:
- 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 ID: MIT-11
Phases: Operation, Build and Compilation
Strategy: Environment Hardening
Description:
- 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 ID: MIT-12
Phase: Operation
Strategy: Environment Hardening
Description:
- 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 ID: MIT-13
Phase: Implementation
Description:
- 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.