Common Weakness Enumeration
CWE-122
AllowedHeap-based Buffer Overflow
Abstraction: Variant · Status: Draft
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
5249 vulnerabilities reference this CWE, most recent first.
CVE-2026-34979 (GCVE-0-2026-34979)
Vulnerability from cvelistv5 – Published: 2026-04-03 21:16 – Updated: 2026-04-07 14:19
VLAI
EPSS
VEX
Title
OpenPrinting CUPS: Heap overflow in `get_options()`
Summary
OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, there is a heap-based buffer overflow in the CUPS scheduler when building filter option strings from job attribute. At time of publication, there are no publicly available patches.
Severity
5.3 (Medium)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-07 14:19 UTC
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/OpenPrinting/cups/security/adv… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| OpenPrinting | cups |
Affected:
<= 2.4.16
|
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CVE-2026-34865 (GCVE-0-2026-34865)
Vulnerability from cvelistv5 – Published: 2026-04-13 06:02 – Updated: 2026-04-13 13:08
VLAI
EPSS
VEX
Summary
Out-of-bounds write vulnerability in the WEB module.Impact: Successful exploitation of this vulnerability will affect availability and confidentiality.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-13 13:07 UTC
CWE
- CWE-122 - Heap-based buffer overflow
Assigner
References
1 reference
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CVE-2026-34743 (GCVE-0-2026-34743)
Vulnerability from cvelistv5 – Published: 2026-04-02 18:36 – Updated: 2026-07-21 22:19
VLAI
EPSS
VEX
Title
XZ Utils: Buffer overflow in lzma_index_append()
Summary
XZ Utils provide a general-purpose data-compression library plus command-line tools. Prior to version 5.8.3, if lzma_index_decoder() was used to decode an Index that contained no Records, the resulting lzma_index was left in a state where where a subsequent lzma_index_append() would allocate too little memory, and a buffer overflow would occur. This issue has been patched in version 5.8.3.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-03 12:58 UTC
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/tukaani-project/xz/security/ad… | x_refsource_CONFIRM |
| https://github.com/tukaani-project/xz/commit/c8c2… | x_refsource_MISC |
| https://github.com/tukaani-project/xz/releases/ta… | x_refsource_MISC |
| http://www.openwall.com/lists/oss-security/2026/0… | |
| https://lists.debian.org/debian-lts-announce/2026… |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| tukaani-project | xz |
Affected:
< 5.8.3
|
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CVE-2026-34707 (GCVE-0-2026-34707)
Vulnerability from cvelistv5 – Published: 2026-06-09 17:49 – Updated: 2026-08-27 22:37
VLAI
EPSS
VEX
Title
InCopy | Heap-based Buffer Overflow (CWE-122)
Summary
InCopy versions 21.3, 20.5.3 and earlier are affected by a Heap-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-09 00:00 UTC
CWE
- CWE-122 - Heap-based Buffer Overflow (CWE-122)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/incopy/… | vendor-advisory |
Impacted products
Date Public
2026-06-09 17:00
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CVE-2026-34701 (GCVE-0-2026-34701)
Vulnerability from cvelistv5 – Published: 2026-06-09 17:43 – Updated: 2026-08-27 22:37
VLAI
EPSS
VEX
Title
InDesign Desktop | Heap-based Buffer Overflow (CWE-122)
Summary
InDesign Desktop versions 21.3, 20.5.3 and earlier are affected by a Heap-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-10 03:59 UTC
CWE
- CWE-122 - Heap-based Buffer Overflow (CWE-122)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/indesig… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Adobe | InDesign Desktop |
Affected:
0 , ≤ 21.3
(semver)
Unaffected: 21.4 (semver) Affected: 0 , ≤ 20.5.3 (semver) Unaffected: 20.5.4 (semver) |
Date Public
2026-06-09 17:00
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CVE-2026-34699 (GCVE-0-2026-34699)
Vulnerability from cvelistv5 – Published: 2026-06-09 17:43 – Updated: 2026-08-27 22:37
VLAI
EPSS
VEX
Title
InDesign Desktop | Heap-based Buffer Overflow (CWE-122)
Summary
InDesign Desktop versions 21.3, 20.5.3 and earlier are affected by a Heap-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-09 00:00 UTC
CWE
- CWE-122 - Heap-based Buffer Overflow (CWE-122)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/indesig… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Adobe | InDesign Desktop |
Affected:
0 , ≤ 21.3
(semver)
Unaffected: 21.4 (semver) Affected: 0 , ≤ 20.5.3 (semver) Unaffected: 20.5.4 (semver) |
Date Public
2026-06-09 17:00
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CVE-2026-34698 (GCVE-0-2026-34698)
Vulnerability from cvelistv5 – Published: 2026-06-09 17:43 – Updated: 2026-08-27 22:37
VLAI
EPSS
VEX
Title
InDesign Desktop | Heap-based Buffer Overflow (CWE-122)
Summary
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Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-09 00:00 UTC
CWE
- CWE-122 - Heap-based Buffer Overflow (CWE-122)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/indesig… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Adobe | InDesign Desktop |
Affected:
0 , ≤ 21.3
(semver)
Unaffected: 21.4 (semver) Affected: 0 , ≤ 20.5.3 (semver) Unaffected: 20.5.4 (semver) |
Date Public
2026-06-09 17:00
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CVE-2026-34687 (GCVE-0-2026-34687)
Vulnerability from cvelistv5 – Published: 2026-05-12 17:49 – Updated: 2026-08-27 22:24
VLAI
EPSS
VEX
Title
Illustrator | Heap-based Buffer Overflow (CWE-122)
Summary
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Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-13 03:58 UTC
CWE
- CWE-122 - Heap-based Buffer Overflow (CWE-122)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/illustr… | vendor-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Adobe | Illustrator Desktop 2026 |
Affected:
0 , ≤ 30.3
(semver)
Unaffected: 30.4 (semver) |
|
| Adobe | Illustrator Desktop 2025 |
Affected:
0 , ≤ 29.8.6
(semver)
Unaffected: 29.8.7 (semver) |
Date Public
2026-05-12 17:00
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CVE-2026-34674 (GCVE-0-2026-34674)
Vulnerability from cvelistv5 – Published: 2026-08-27 15:43 – Updated: 2026-08-27 22:24
VLAI
EPSS
VEX
Title
Substance3D - Sampler | Heap-based Buffer Overflow (CWE-122)
Summary
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Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-27 18:15 UTC
CWE
- CWE-122 - Heap-based Buffer Overflow (CWE-122)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/substan… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Adobe | Adobe Substance 3D Sampler |
Affected:
0 , ≤ 5.1.3
(semver)
Unaffected: 6.0 (semver) |
Date Public
2026-05-12 17:00
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CVE-2026-34642 (GCVE-0-2026-34642)
Vulnerability from cvelistv5 – Published: 2026-05-12 17:19 – Updated: 2026-08-27 22:24
VLAI
EPSS
VEX
Title
After Effects | Heap-based Buffer Overflow (CWE-122)
Summary
After Effects versions 26.0, 25.6.4 and earlier are affected by a Heap-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-13 03:58 UTC
CWE
- CWE-122 - Heap-based Buffer Overflow (CWE-122)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/after_e… | vendor-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Adobe | After Effects |
Affected:
0 , ≤ 26.0
(semver)
Unaffected: 26.2 (semver) |
|
| Adobe | After Effects |
Affected:
0 , ≤ 25.6.4
(semver)
Unaffected: 25.6.5 (semver) |
Date Public
2026-05-12 17:00
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Mitigation
Pre-design: Use a language or compiler that performs automatic bounds checking.
Mitigation
Architecture and Design
Use an abstraction library to abstract away risky APIs. Not a complete solution.
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-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
Implementation
Implement and perform bounds checking on input.
Mitigation
Implementation
Strategy: Libraries or Frameworks
Do not use dangerous functions such as gets. Look for their safe equivalent, which checks for the boundary.
Mitigation
Operation
Use OS-level preventative functionality. This is not a complete solution, but it provides some defense in depth.
CAPEC-92: Forced Integer Overflow
This attack forces an integer variable to go out of range. The integer variable is often used as an offset such as size of memory allocation or similarly. The attacker would typically control the value of such variable and try to get it out of range. For instance the integer in question is incremented past the maximum possible value, it may wrap to become a very small, or negative number, therefore providing a very incorrect value which can lead to unexpected behavior. At worst the attacker can execute arbitrary code.