Common Weakness Enumeration

CWE-122

Allowed

Heap-based Buffer Overflow

Abstraction: Variant · Status: Draft

API response cwe.mitre.org

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().

5426 vulnerabilities reference this CWE, most recent first.

CVE-2026-15173 (GCVE-0-2026-15173)

Vulnerability from cvelistv5 – Published: 2026-07-08 20:51 – Updated: 2026-07-09 13:44
VLAI
Title
Heap-based Buffer Overflow in Wireshark
Summary
pcapng file parser crash in Wireshark 4.6.0 to 4.6.6 allows denial of service
Severity
4.7 (Medium)
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-09 13:44 UTC
CWE
  • CWE-122 - Heap-based Buffer Overflow
Assigner
References
Impacted products
Vendor Product Version
Wireshark Foundation Wireshark Affected: 4.6.0 , < 4.6.7 (semver)
Create a notification for this product.
Credits
Mitchell Benjamin
Show details on NVD website
To clipboard 

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CVE-2026-15170 (GCVE-0-2026-15170)

Vulnerability from cvelistv5 – Published: 2026-07-08 20:50 – Updated: 2026-07-09 13:46
VLAI
Title
Heap-based Buffer Overflow in Wireshark
Summary
Z39.50 protocol dissector crash in Wireshark 4.6.0 to 4.6.6 and 4.4.0 to 4.4.16 allows denial of service
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-09 13:46 UTC
CWE
  • CWE-122 - Heap-based Buffer Overflow
Assigner
References
Impacted products
Vendor Product Version
Wireshark Foundation Wireshark Affected: 4.6.0 , < 4.6.7 (semver)
Affected: 4.4.0 , < 4.4.17 (semver)
Create a notification for this product.
Credits
Claude and Ada Logics
Show details on NVD website
To clipboard 

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CVE-2026-15169 (GCVE-0-2026-15169)

Vulnerability from cvelistv5 – Published: 2026-07-08 20:51 – Updated: 2026-07-09 13:45
VLAI
Title
Heap-based Buffer Overflow in Wireshark
Summary
UMTS FP protocol dissector crash in Wireshark 4.6.0 to 4.6.6 and 4.4.0 to 4.4.16 allows denial of service
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-09 13:45 UTC
CWE
  • CWE-122 - Heap-based Buffer Overflow
Assigner
References
Impacted products
Vendor Product Version
Wireshark Foundation Wireshark Affected: 4.6.0 , < 4.6.7 (semver)
Affected: 4.4.0 , < 4.4.17 (semver)
Create a notification for this product.
Credits
Claude and Ada Logics
Show details on NVD website
To clipboard 

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CVE-2026-15165 (GCVE-0-2026-15165)

Vulnerability from cvelistv5 – Published: 2026-07-08 20:50 – Updated: 2026-07-09 13:47
VLAI
Title
Heap-based Buffer Overflow in Wireshark
Summary
TLS ECH decryptor crash in Wireshark 4.6.0 to 4.6.6 allows denial of service
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-09 13:46 UTC
CWE
  • CWE-122 - Heap-based Buffer Overflow
Assigner
References
Impacted products
Vendor Product Version
Wireshark Foundation Wireshark Affected: 4.6.0 , < 4.6.7 (semver)
Create a notification for this product.
Credits
Claude and Ada Logics
Show details on NVD website
To clipboard 

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CVE-2026-15164 (GCVE-0-2026-15164)

Vulnerability from cvelistv5 – Published: 2026-07-08 20:50 – Updated: 2026-07-09 13:50
VLAI
Title
Heap-based Buffer Overflow in ciscodump
Summary
Crash in ciscodump 4.6.0 to 4.6.6 and 4.4.0 to 4.4.16 allows denial of service
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-09 13:50 UTC
CWE
  • CWE-122 - Heap-based Buffer Overflow
Assigner
References
Impacted products
Vendor Product Version
Wireshark Foundation ciscodump Affected: 4.6.0 , < 4.6.7 (semver)
Affected: 4.4.0 , < 4.4.17 (semver)
Create a notification for this product.
Credits
0sec and Doruk Tan Ozturk
Show details on NVD website
To clipboard 

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CVE-2026-14940 (GCVE-0-2026-14940)

Vulnerability from cvelistv5 – Published: 2026-07-07 13:54 – Updated: 2026-07-07 15:35
VLAI
Title
389-ds-base: 389-ds-base: heap-buffer-overflow in dn normalization via quoted multivalued rdn
Summary
A heap-buffer-overflow flaw was found in 389 Directory Server (389-ds-base). When normalizing a Distinguished Name (DN) that contains a legacy-quoted value encoding a multivalued nested Relative Distinguished Name (RDN), the server can write past the end of a heap allocation while sorting RDN attribute-value pairs. An unauthenticated remote attacker can trigger this condition by sending an LDAP operation whose DN reaches the DN normalization routine, such as a search with a crafted base DN. This can corrupt heap memory and may cause denial of service.
Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-07 15:35 UTC
CWE
  • CWE-122 - Heap-based Buffer Overflow
Assigner
References
URL Tags
https://access.redhat.com/security/cve/CVE-2026-14940 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2497697 issue-trackingx_refsource_REDHAT
Impacted products
Date Public
2026-07-07 12:01
Credits
Red Hat would like to thank Denis Rastyogin (ALT Linux) for reporting this issue.
Show details on NVD website
To clipboard 

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CVE-2026-14888 (GCVE-0-2026-14888)

Vulnerability from cvelistv5 – Published: 2026-10-08 14:02 – Updated: 2026-10-09 03:55
VLAI
Title
IBM DataPower Gateway Buffer Overflow
Summary
IBM DataPower Gateway 10.5.0.0 through 10.5.0.22, 10.6.1 through 10.6.6, 10.6.0.0 through 10.6.0.10, and 11.0.0.0 through 11.0.0.2 could allow a remote attacker to execute arbitrary code due to a heap-based buffer overflow.
Severity
8.1 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 00:00 UTC
CWE
  • CWE-122 - Heap-based Buffer Overflow
Assigner
References
URL Tags
https://www.ibm.com/support/pages/node/7289775 vendor-advisorypatch
Impacted products
Vendor Product Version
IBM DataPower Gateway 10.6CD Affected: 10.6.1 , ≤ 10.6.6 (semver)
    cpe:2.3:a:ibm:datapower_gateway_106cd:10.6.1:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:datapower_gateway_106cd:10.6.6:*:*:*:*:*:*:*
Create a notification for this product.
IBM DataPower Gateway 10.6.0 Affected: 10.6.0.0 , ≤ 10.6.0.10 (semver)
    cpe:2.3:a:ibm:datapower_gateway_1060:10.6.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:datapower_gateway_1060:10.6.0.10:*:*:*:*:*:*:*
Create a notification for this product.
IBM DataPower Gateway 11.0.0 Affected: 11.0.0.0 , ≤ 11.0.0.2 (semver)
    cpe:2.3:a:ibm:datapower_gateway_1100:11.0.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:datapower_gateway_1100:11.0.0.2:*:*:*:*:*:*:*
Create a notification for this product.
IBM DataPower Gateway 10.5.0 Affected: 10.5.0.0 , ≤ 10.5.0.22 (semver)
    cpe:2.3:a:ibm:datapower_gateway_1050:10.5.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:datapower_gateway_1050:10.5.0.22:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website
To clipboard 

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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
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
4.8 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
3.3 (Low)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
3.3 (Low)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-06 13:20 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version
radareorg radare2 Affected: 6.1.0
Affected: 6.1.1
Affected: 6.1.2
Affected: 6.1.3
Affected: 6.1.4
Affected: 6.1.5
Affected: 6.1.6
    cpe:2.3:a:radareorg:radare2:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
Kery Qi (VulDB User)
Show details on NVD website
To clipboard 

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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
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)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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
Impacted products
Vendor Product Version
n/a PostgreSQL Affected: 18 , < 18.6 (rpm)
Credits
The PostgreSQL project thanks Sajeeb Lohani (with TrendAI Zero Day Initiative), Yuelin Wang, and David Korczynski (Claude and Ada Logics) for reporting this problem.
Show details on NVD website
To clipboard 

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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
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)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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
Impacted products
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)
Credits
The PostgreSQL project thanks Hcamael for reporting this problem.
Show details on NVD website
To clipboard 

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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.

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