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-2026-14759 (GCVE-0-2026-14759)
Vulnerability from cvelistv5 – Published: 2026-07-05 15:15 – Updated: 2026-07-06 13:20 X_Open Source
VLAI
EPSS
VEX
Title
radareorg radare2 RBinJava Line Number Table class.c r_bin_java_inner_classes_attr_calc_size heap-based overflow
Summary
A security flaw has been discovered in radareorg radare2 up to 6.1.6. This issue affects the function r_bin_java_inner_classes_attr_calc_size of the file shlr/java/class.c of the component RBinJava Line Number Table Parser. Performing a manipulation results in heap-based buffer overflow. The attack requires a local approach. The exploit has been released to the public and may be used for attacks. The patch is named cd62d15a6cbecdc67fd03f3ebdbbbeb741d18f87. To fix this issue, it is recommended to deploy a patch.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-06 13:20 UTC
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/376348 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/376348/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-14759 | third-party-advisory |
| https://vuldb.com/submit/850383 | third-party-advisory |
| https://github.com/radareorg/radare2/issues/26043 | exploitissue-tracking |
| https://github.com/radareorg/radare2/commit/cd62d… | patch |
| https://github.com/radareorg/radare2/ | product |
Impacted products
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CVE-2026-14676 (GCVE-0-2026-14676)
Vulnerability from cvelistv5 – Published: 2026-08-13 13:00 – Updated: 2026-08-29 23:07
VLAI
EPSS
VEX
Title
PostgreSQL pg_stat_statements heap buffer overflow executes arbitrary code
Summary
Heap buffer overflow in PostgreSQL pg_stat_statements allows the query author to execute arbitrary code as the operating system user running the database, via crafted queries containing array constants. Within major version 18, minor versions before PostgreSQL 18.6 are affected. Versions before PostgreSQL 18 are unaffected.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-13 14:41 UTC
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | PostgreSQL |
Affected:
18 , < 18.6
(rpm)
|
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CVE-2026-14670 (GCVE-0-2026-14670)
Vulnerability from cvelistv5 – Published: 2026-08-13 13:00 – Updated: 2026-08-29 23:07
VLAI
EPSS
VEX
Title
PostgreSQL plperl tied object heap buffer overflow executes arbitrary code
Summary
Heap buffer overflow in PostgreSQL plperl return of a tied hash allows the function owner to execute arbitrary code as the operating system user running the database, via a crafted function body. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-13 00:00 UTC
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | PostgreSQL |
Affected:
18 , < 18.6
(rpm)
Affected: 17 , < 17.11 (rpm) Affected: 16 , < 16.15 (rpm) Affected: 15 , < 15.19 (rpm) Affected: 0 , < 14.24 (rpm) |
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CVE-2026-14669 (GCVE-0-2026-14669)
Vulnerability from cvelistv5 – Published: 2026-08-13 13:00 – Updated: 2026-08-29 23:07
VLAI
EPSS
VEX
Title
PostgreSQL to_char heap buffer overflow executes arbitrary code
Summary
Heap buffer overflow in PostgreSQL to_char(timestamptz) allows the party choosing the timezone to execute arbitrary code as the operating system user running the database, via a long POSIX timezone abbreviation. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-13 00:00 UTC
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | PostgreSQL |
Affected:
18 , < 18.6
(rpm)
Affected: 17 , < 17.11 (rpm) Affected: 16 , < 16.15 (rpm) Affected: 15 , < 15.19 (rpm) Affected: 0 , < 14.24 (rpm) |
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CVE-2026-14664 (GCVE-0-2026-14664)
Vulnerability from cvelistv5 – Published: 2026-08-13 13:00 – Updated: 2026-08-29 23:07
VLAI
EPSS
VEX
Title
PostgreSQL regexp heap buffer overflow executes arbitrary code
Summary
Heap buffer overflow in PostgreSQL regexp allows the query author to execute arbitrary code as the operating system user running the database, via text that would not pass encoding validation. This shares heritage with CVE-2026-2006, but this case involved unanticipated data growth when round-tripped through pg_wchar. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-13 00:00 UTC
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | PostgreSQL |
Affected:
18 , < 18.6
(rpm)
Affected: 17 , < 17.11 (rpm) Affected: 16 , < 16.15 (rpm) Affected: 15 , < 15.19 (rpm) Affected: 0 , < 14.24 (rpm) |
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CVE-2026-14610 (GCVE-0-2026-14610)
Vulnerability from cvelistv5 – Published: 2026-07-03 20:45 – Updated: 2026-07-06 16:28 X_Open Source
VLAI
EPSS
VEX
Title
Open Asset Import Library Assimp CSM File CSMLoader.cpp InternReadFile heap-based overflow
Summary
A flaw has been found in Open Asset Import Library Assimp up to 6.0.5. Impacted is the function Assimp::CSMImporter::InternReadFile of the file code/AssetLib/CSM/CSMLoader.cpp of the component CSM File Handler. This manipulation causes heap-based buffer overflow. The attack is restricted to local execution. The exploit has been published and may be used. Patch name: eb84eec580d3f4ba2f0fd87409b7d0744620f11e. Applying a patch is the recommended action to fix this issue.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-06 16:28 UTC
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/376118 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/376118/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-14610 | third-party-advisory |
| https://vuldb.com/submit/844646 | third-party-advisory |
| https://github.com/assimp/assimp/issues/6622 | issue-tracking |
| https://github.com/assimp/assimp/pull/6649 | issue-trackingpatch |
| https://github.com/user-attachments/files/2723586… | exploit |
| https://github.com/assimp/assimp/commit/eb84eec58… | patch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Open Asset Import Library | Assimp |
Affected:
6.0.0
Affected: 6.0.1 Affected: 6.0.2 Affected: 6.0.3 Affected: 6.0.4 Affected: 6.0.5 cpe:2.3:a:assimp:assimp:*:*:*:*:*:*:*:* |
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CVE-2026-14355 (GCVE-0-2026-14355)
Vulnerability from cvelistv5 – Published: 2026-07-03 20:57 – Updated: 2026-07-06 13:57
VLAI
EPSS
VEX
Title
ext/openssl: Memory corruption in openssl_encrypt with AES-WRAP-PAD
Summary
In PHP versions 8.2.* before 8.2.32, 8.3.* before 8.3.32, 8.4.* before 8.4.23, 8.5.* before 8.5.8, the AES-WRAP-PAD algorithm implementation in OpenSSL extension contains a buffer allocation flaw. The output buffer for the AES key-wrap-with-padding operation is sized from the plaintext length without accounting for RFC 5649 expansion. This may cause OpenSSL to write beyond allocated memory, corrupting heap metadata and triggering application abort.
Severity
5.6 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-06 13:57 UTC
CWE
- CWE-122 - Heap-based buffer overflow
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/php/php-src/security/advisorie… | vendor-advisory |
| https://lists.debian.org/debian-lts-announce/2026… |
Impacted products
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CVE-2026-14266 (GCVE-0-2026-14266)
Vulnerability from cvelistv5 – Published: 2026-07-29 17:17 – Updated: 2026-07-30 03:55
VLAI
EPSS
VEX
Title
7-Zip XZ Decompression Heap-based Buffer Overflow Remote Code Execution Vulnerability
Summary
7-Zip XZ Decompression Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of 7-Zip. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the processing of XZ chunked data. Crafted XZ-compressed data can trigger an overflow of a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-30169.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-29 00:00 UTC
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.zerodayinitiative.com/advisories/ZDI-… | x_research-advisory |
| http://www.openwall.com/lists/oss-security/2026/0… |
Date Public
2026-07-15 21:47
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CVE-2026-13590 (GCVE-0-2026-13590)
Vulnerability from cvelistv5 – Published: 2026-06-29 16:45 – Updated: 2026-06-30 15:34 X_Open Source
VLAI
EPSS
VEX
Title
seladb PcapPlusPlus Modbus Protocol ModbusLayer.h getLength heap-based overflow
Summary
A security flaw has been discovered in seladb PcapPlusPlus 25.05. This impacts the function pcpp::ModbusLayer::getLength in the library Packet++/header/ModbusLayer.h of the component Modbus Protocol Handler. The manipulation of the argument length results in heap-based buffer overflow. The attack can be launched remotely. A high complexity level is associated with this attack. The exploitability is said to be difficult. The exploit has been released to the public and may be used for attacks. The patch is identified as 4c90c3e3418a2b09dc82b7ca5775e9c1e22fe454. Applying a patch is advised to resolve this issue.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-30 15:34 UTC
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/374593 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/374593/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-13590 | third-party-advisory |
| https://vuldb.com/submit/844483 | third-party-advisory |
| https://github.com/seladb/PcapPlusPlus/issues/2155 | issue-tracking |
| https://github.com/seladb/PcapPlusPlus/pull/2159 | issue-trackingpatch |
| https://github.com/user-attachments/files/2824904… | exploit |
| https://github.com/seladb/PcapPlusPlus/commit/4c9… | patch |
| https://github.com/seladb/PcapPlusPlus/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| seladb | PcapPlusPlus |
Affected:
25.05
cpe:2.3:a:seladb:pcapplusplus:*:*:*:*:*:*:*:* |
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CVE-2026-13589 (GCVE-0-2026-13589)
Vulnerability from cvelistv5 – Published: 2026-06-29 16:30 – Updated: 2026-06-29 17:22 X_Open Source
VLAI
EPSS
VEX
Title
seladb PcapPlusPlus Telnet Subnegotiation Packet TelnetLayer.cpp getSubCommand heap-based overflow
Summary
A vulnerability was identified in seladb PcapPlusPlus 25.05. This affects the function pcpp::TelnetLayer::getSubCommand of the file Packet++/src/TelnetLayer.cpp of the component Telnet Subnegotiation Packet Handler. The manipulation leads to heap-based buffer overflow. The attack can be initiated remotely. The complexity of an attack is rather high. The exploitability is reported as difficult. The exploit is publicly available and might be used. The identifier of the patch is 98e671010bc7c87b95898c22ae289220ae92542b. It is recommended to apply a patch to fix this issue.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-29 17:22 UTC
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/374592 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/374592/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-13589 | third-party-advisory |
| https://vuldb.com/submit/844482 | third-party-advisory |
| https://github.com/seladb/PcapPlusPlus/issues/2152 | issue-tracking |
| https://github.com/seladb/PcapPlusPlus/pull/2161 | issue-trackingpatch |
| https://github.com/user-attachments/files/2821457… | exploit |
| https://github.com/seladb/PcapPlusPlus/commit/98e… | patch |
| https://github.com/seladb/PcapPlusPlus/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| seladb | PcapPlusPlus |
Affected:
25.05
cpe:2.3:a:seladb:pcapplusplus:*:*:*:*:*:*:*:* |
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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.