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().
4096 vulnerabilities reference this CWE, most recent first.
GHSA-Q4GC-PF54-76JM
Vulnerability from github – Published: 2025-02-11 18:31 – Updated: 2025-02-11 18:31
VLAI
Details
Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2025-21410"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-02-11T18:15:39Z",
"severity": "HIGH"
},
"details": "Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability",
"id": "GHSA-q4gc-pf54-76jm",
"modified": "2025-02-11T18:31:40Z",
"published": "2025-02-11T18:31:40Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21410"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21410"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-Q4HC-VP2M-FR47
Vulnerability from github – Published: 2026-02-23 18:32 – Updated: 2026-03-31 18:31
VLAI
Details
A flaw was found in the 389-ds-base server. A heap buffer overflow vulnerability exists in the schema_attr_enum_callback function within the schema.c file. This occurs because the code incorrectly calculates the buffer size by summing alias string lengths without accounting for additional formatting characters. When a large number of aliases are processed, this oversight can lead to a heap overflow, potentially allowing a remote attacker to cause a Denial of Service (DoS) or achieve Remote Code Execution (RCE).
Severity
7.2 (High)
{
"affected": [],
"aliases": [
"CVE-2025-14905"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-02-23T16:29:35Z",
"severity": "HIGH"
},
"details": "A flaw was found in the 389-ds-base server. A heap buffer overflow vulnerability exists in the `schema_attr_enum_callback` function within the `schema.c` file. This occurs because the code incorrectly calculates the buffer size by summing alias string lengths without accounting for additional formatting characters. When a large number of aliases are processed, this oversight can lead to a heap overflow, potentially allowing a remote attacker to cause a Denial of Service (DoS) or achieve Remote Code Execution (RCE).",
"id": "GHSA-q4hc-vp2m-fr47",
"modified": "2026-03-31T18:31:25Z",
"published": "2026-02-23T18:32:02Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-14905"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2423624"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2025-14905"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:6268"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:6220"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:5598"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:5597"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:5576"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:5569"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:5568"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:5514"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:5513"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:5512"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:5511"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:5196"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:4720"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:4661"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:4207"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:3504"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:3379"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:3208"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:3189"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-Q4JM-4P9G-2H6G
Vulnerability from github – Published: 2022-05-24 17:34 – Updated: 2022-05-24 17:34
VLAI
Details
A heap overflow vulnerability exists within FactoryTalk Linx Version 6.11 and prior. This vulnerability could allow a remote, unauthenticated attacker to send malicious set attribute requests, which could result in the leaking of sensitive information. This information disclosure could lead to the bypass of address space layout randomization (ASLR).
{
"affected": [],
"aliases": [
"CVE-2020-27255"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-11-26T02:15:00Z",
"severity": "HIGH"
},
"details": "A heap overflow vulnerability exists within FactoryTalk Linx Version 6.11 and prior. This vulnerability could allow a remote, unauthenticated attacker to send malicious set attribute requests, which could result in the leaking of sensitive information. This information disclosure could lead to the bypass of address space layout randomization (ASLR).",
"id": "GHSA-q4jm-4p9g-2h6g",
"modified": "2022-05-24T17:34:58Z",
"published": "2022-05-24T17:34:58Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-27255"
},
{
"type": "WEB",
"url": "https://us-cert.cisa.gov/ics/advisories/icsa-20-329-01"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-Q4PM-3JVQ-RM3M
Vulnerability from github – Published: 2024-02-13 18:38 – Updated: 2024-02-13 18:38
VLAI
Details
Microsoft WDAC OLE DB provider for SQL Server Remote Code Execution Vulnerability
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2024-21359"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-02-13T18:15:52Z",
"severity": "HIGH"
},
"details": "Microsoft WDAC OLE DB provider for SQL Server Remote Code Execution Vulnerability",
"id": "GHSA-q4pm-3jvq-rm3m",
"modified": "2024-02-13T18:38:23Z",
"published": "2024-02-13T18:38:23Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-21359"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21359"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-Q4XJ-37RV-G8RW
Vulnerability from github – Published: 2023-01-04 12:30 – Updated: 2023-01-11 03:30
VLAI
Details
In wlan driver, there is a possible missing bounds check. This could lead to local denial of service in wlan services.
Severity
5.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2022-44428"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-01-04T10:15:00Z",
"severity": "MODERATE"
},
"details": "In wlan driver, there is a possible missing bounds check. This could lead to local denial of service in wlan services.",
"id": "GHSA-q4xj-37rv-g8rw",
"modified": "2023-01-11T03:30:19Z",
"published": "2023-01-04T12:30:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-44428"
},
{
"type": "WEB",
"url": "https://www.unisoc.com/en_us/secy/announcementDetail/1610118225591336001"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-Q52P-3M33-W676
Vulnerability from github – Published: 2022-05-02 03:45 – Updated: 2026-05-20 18:31
VLAI
Details
Heap-based buffer overflow in Adobe Reader and Acrobat 7.x before 7.1.4, 8.x before 8.1.7, and 9.x before 9.2 allows remote attackers to execute arbitrary code via a crafted PDF file that triggers memory corruption, as exploited in the wild in October 2009. NOTE: some of these details are obtained from third party information.
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2009-3459"
],
"database_specific": {
"cwe_ids": [
"CWE-119",
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2009-10-13T10:30:00Z",
"severity": "HIGH"
},
"details": "Heap-based buffer overflow in Adobe Reader and Acrobat 7.x before 7.1.4, 8.x before 8.1.7, and 9.x before 9.2 allows remote attackers to execute arbitrary code via a crafted PDF file that triggers memory corruption, as exploited in the wild in October 2009. NOTE: some of these details are obtained from third party information.",
"id": "GHSA-q52p-3m33-w676",
"modified": "2026-05-20T18:31:27Z",
"published": "2022-05-02T03:45:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2009-3459"
},
{
"type": "WEB",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/53691"
},
{
"type": "WEB",
"url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6534"
},
{
"type": "WEB",
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2009-3459"
},
{
"type": "WEB",
"url": "http://blogs.adobe.com/psirt/2009/10/adobe_reader_and_acrobat_issue_1.html"
},
{
"type": "WEB",
"url": "http://isc.sans.org/diary.html?storyid=7300"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/36983"
},
{
"type": "WEB",
"url": "http://securitytracker.com/id?1023007"
},
{
"type": "WEB",
"url": "http://www.adobe.com/support/security/bulletins/apsb09-15.html"
},
{
"type": "WEB",
"url": "http://www.iss.net/threats/348.html"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/36600"
},
{
"type": "WEB",
"url": "http://www.us-cert.gov/cas/techalerts/TA09-286B.html"
},
{
"type": "WEB",
"url": "http://www.vupen.com/english/advisories/2009/2851"
},
{
"type": "WEB",
"url": "http://www.vupen.com/english/advisories/2009/2898"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-Q54R-RX89-MW8V
Vulnerability from github – Published: 2024-08-13 18:31 – Updated: 2024-08-13 18:31
VLAI
Details
Microsoft Excel Remote Code Execution Vulnerability
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2024-38172"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-08-13T18:15:25Z",
"severity": "HIGH"
},
"details": "Microsoft Excel Remote Code Execution Vulnerability",
"id": "GHSA-q54r-rx89-mw8v",
"modified": "2024-08-13T18:31:17Z",
"published": "2024-08-13T18:31:17Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38172"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-38172"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-Q556-G83V-3933
Vulnerability from github – Published: 2026-04-09 00:31 – Updated: 2026-04-10 21:31
VLAI
Details
Heap buffer overflow in WebAudio in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page. (Chromium security severity: High)
Severity
6.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2026-5864"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-04-08T22:16:25Z",
"severity": "MODERATE"
},
"details": "Heap buffer overflow in WebAudio in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page. (Chromium security severity: High)",
"id": "GHSA-q556-g83v-3933",
"modified": "2026-04-10T21:31:13Z",
"published": "2026-04-09T00:31:59Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-5864"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2026/04/stable-channel-update-for-desktop.html"
},
{
"type": "WEB",
"url": "https://issues.chromium.org/issues/490642831"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L",
"type": "CVSS_V3"
}
]
}
GHSA-Q56F-QHQM-X6F8
Vulnerability from github – Published: 2026-07-14 18:32 – Updated: 2026-07-14 18:32
VLAI
Details
Heap-based buffer overflow in Windows FTP Service allows an unauthorized attacker to execute code over a network.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2026-49172"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-14T17:16:52Z",
"severity": "CRITICAL"
},
"details": "Heap-based buffer overflow in Windows FTP Service allows an unauthorized attacker to execute code over a network.",
"id": "GHSA-q56f-qhqm-x6f8",
"modified": "2026-07-14T18:32:00Z",
"published": "2026-07-14T18:32:00Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-49172"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-49172"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-Q5M6-W3X7-PM25
Vulnerability from github – Published: 2026-07-14 18:32 – Updated: 2026-07-14 18:32
VLAI
Details
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2026-55053"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-14T18:18:17Z",
"severity": "HIGH"
},
"details": "Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.",
"id": "GHSA-q5m6-w3x7-pm25",
"modified": "2026-07-14T18:32:34Z",
"published": "2026-07-14T18:32:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-55053"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55053"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
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.