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-WWJ3-XJMP-VQ7M
Vulnerability from github – Published: 2024-08-14 15:31 – Updated: 2024-08-14 15:31InDesign Desktop versions ID19.4, ID18.5.2 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.
{
"affected": [],
"aliases": [
"CVE-2024-41853"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-08-14T15:15:30Z",
"severity": "HIGH"
},
"details": "InDesign Desktop versions ID19.4, ID18.5.2 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.",
"id": "GHSA-wwj3-xjmp-vq7m",
"modified": "2024-08-14T15:31:18Z",
"published": "2024-08-14T15:31:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-41853"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/indesign/apsb24-56.html"
}
],
"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-WWXH-P9HV-8WFX
Vulnerability from github – Published: 2025-08-14 06:30 – Updated: 2025-08-14 06:30Netskope was notified about a potential gap in its agent (NS Client) on Windows systems. If this gap is successfully exploited, an unprivileged user can trigger a heap overflow in the epdlpdrv.sys driver, leading to a Blue-Screen-of-Death (BSOD). Successful exploitation can also potentially be performed by an unprivileged user whose NS Client is configured to use Endpoint DLP. A successful exploit can result in a denial-of-service for the local machine.
{
"affected": [],
"aliases": [
"CVE-2025-5942"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-08-14T05:15:26Z",
"severity": "MODERATE"
},
"details": "Netskope was notified about a potential gap in its agent (NS Client) on Windows systems. If this gap is successfully exploited, an unprivileged user can trigger a heap overflow in the epdlpdrv.sys driver, leading to a Blue-Screen-of-Death (BSOD). Successful exploitation can also potentially be performed by an unprivileged user whose NS Client is configured to use Endpoint DLP. A successful exploit can result in a denial-of-service for the local machine.",
"id": "GHSA-wwxh-p9hv-8wfx",
"modified": "2025-08-14T06:30:33Z",
"published": "2025-08-14T06:30:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-5942"
},
{
"type": "WEB",
"url": "https://www.netskope.com/company/security-compliance-and-assurance/security-advisories-and-disclosures/netskope-security-advisory-nskpsa-2025-003"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-WX4F-9WF4-26P4
Vulnerability from github – Published: 2024-05-14 18:30 – Updated: 2026-01-05 18:30TinyWeb 1.94 and below allows unauthenticated remote attackers to cause a denial of service (Buffer Overflow) when sending excessively large elements in the request line.
{
"affected": [],
"aliases": [
"CVE-2024-34199"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-14T15:38:32Z",
"severity": "HIGH"
},
"details": "TinyWeb 1.94 and below allows unauthenticated remote attackers to cause a denial of service (Buffer Overflow) when sending excessively large elements in the request line.",
"id": "GHSA-wx4f-9wf4-26p4",
"modified": "2026-01-05T18:30:20Z",
"published": "2024-05-14T18:30:49Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-34199"
},
{
"type": "WEB",
"url": "https://github.com/maximmasiutin/TinyWeb/commit/2584082"
},
{
"type": "WEB",
"url": "https://github.com/maximmasiutin/TinyWeb/commit/d49c3da"
},
{
"type": "WEB",
"url": "https://github.com/DMCERTCE/PoC_Tiny_Overflow"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-WX7G-R7W5-GV3H
Vulnerability from github – Published: 2026-07-14 18:32 – Updated: 2026-07-14 18:32Integer overflow or wraparound in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
{
"affected": [],
"aliases": [
"CVE-2026-55048"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-14T18:18:16Z",
"severity": "HIGH"
},
"details": "Integer overflow or wraparound in Microsoft Office Excel allows an unauthorized attacker to execute code locally.",
"id": "GHSA-wx7g-r7w5-gv3h",
"modified": "2026-07-14T18:32:33Z",
"published": "2026-07-14T18:32:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-55048"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55048"
}
],
"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-WX98-G485-PGFR
Vulnerability from github – Published: 2024-04-09 18:30 – Updated: 2024-04-09 18:30Secure Boot Security Feature Bypass Vulnerability
{
"affected": [],
"aliases": [
"CVE-2024-28896"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-04-09T17:15:47Z",
"severity": "HIGH"
},
"details": "Secure Boot Security Feature Bypass Vulnerability",
"id": "GHSA-wx98-g485-pgfr",
"modified": "2024-04-09T18:30:26Z",
"published": "2024-04-09T18:30:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-28896"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-28896"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-WXGW-4G8W-Q999
Vulnerability from github – Published: 2024-05-02 15:30 – Updated: 2024-05-02 15:30An out-of-bounds write to heap in the pacparser library on Zscaler Client Connector on Mac may lead to arbitrary code execution.
{
"affected": [],
"aliases": [
"CVE-2023-28798"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-02T13:23:05Z",
"severity": "MODERATE"
},
"details": "An out-of-bounds write to heap in the pacparser library on Zscaler Client Connector on Mac may lead to arbitrary code execution.",
"id": "GHSA-wxgw-4g8w-q999",
"modified": "2024-05-02T15:30:33Z",
"published": "2024-05-02T15:30:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-28798"
},
{
"type": "WEB",
"url": "https://help.zscaler.com/client-connector/client-connector-app-release-summary-2022?applicable_category=macOS\u0026applicable_version=3.7\u0026deployment_date=2022-08-19\u0026id=1414851"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L",
"type": "CVSS_V3"
}
]
}
GHSA-X252-4R5Q-2HC6
Vulnerability from github – Published: 2026-02-13 00:32 – Updated: 2026-02-13 00:32Prime95 version 29.8 build 6 contains a buffer overflow vulnerability in the user ID input field that allows remote attackers to execute arbitrary code. Attackers can craft a malicious payload and paste it into the PrimeNet user ID and proxy host fields to trigger a bind shell on port 3110.
{
"affected": [],
"aliases": [
"CVE-2019-25327"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-02-12T23:16:04Z",
"severity": "HIGH"
},
"details": "Prime95 version 29.8 build 6 contains a buffer overflow vulnerability in the user ID input field that allows remote attackers to execute arbitrary code. Attackers can craft a malicious payload and paste it into the PrimeNet user ID and proxy host fields to trigger a bind shell on port 3110.",
"id": "GHSA-x252-4r5q-2hc6",
"modified": "2026-02-13T00:32:52Z",
"published": "2026-02-13T00:32:52Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-25327"
},
{
"type": "WEB",
"url": "https://www.exploit-db.com/exploits/47802"
},
{
"type": "WEB",
"url": "https://www.mersenne.org"
},
{
"type": "WEB",
"url": "https://www.vulncheck.com/advisories/prime-version-build-buffer-overflow-seh"
}
],
"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"
},
{
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-X25X-VJRM-H7QQ
Vulnerability from github – Published: 2025-12-31 03:30 – Updated: 2025-12-31 03:30pcap_ether_aton() is an auxiliary function in libpcap, it takes a string argument and returns a fixed-size allocated buffer. The string argument must be a well-formed MAC-48 address in one of the supported formats, but this requirement has been poorly documented. If an application calls the function with an argument that deviates from the expected format, the function can read data beyond the end of the provided string and write data beyond the end of the allocated buffer.
{
"affected": [],
"aliases": [
"CVE-2025-11961"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-12-31T01:15:54Z",
"severity": "LOW"
},
"details": "pcap_ether_aton() is an auxiliary function in libpcap, it takes a string argument and returns a fixed-size allocated buffer. The string argument must be a well-formed MAC-48 address in one of the supported formats, but this requirement has been poorly documented. If an application calls the function with an argument that deviates from the expected format, the function can read data beyond the end of the provided string and write data beyond the end of the allocated buffer.",
"id": "GHSA-x25x-vjrm-h7qq",
"modified": "2025-12-31T03:30:34Z",
"published": "2025-12-31T03:30:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-11961"
},
{
"type": "WEB",
"url": "https://github.com/the-tcpdump-group/libpcap/commit/b2d2f9a9a0581c40780bde509f7cc715920f1c02"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-X273-GR5C-73W4
Vulnerability from github – Published: 2025-03-11 18:32 – Updated: 2025-03-11 18:32Heap-based buffer overflow in Microsoft Streaming Service allows an authorized attacker to elevate privileges locally.
{
"affected": [],
"aliases": [
"CVE-2025-24067"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-03-11T17:16:29Z",
"severity": "HIGH"
},
"details": "Heap-based buffer overflow in Microsoft Streaming Service allows an authorized attacker to elevate privileges locally.",
"id": "GHSA-x273-gr5c-73w4",
"modified": "2025-03-11T18:32:17Z",
"published": "2025-03-11T18:32:17Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-24067"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-24067"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-X282-2JWX-HVGG
Vulnerability from github – Published: 2022-05-18 00:00 – Updated: 2022-05-27 00:01Heap-based Buffer Overflow in GitHub repository vim/vim prior to 8.2.
{
"affected": [],
"aliases": [
"CVE-2022-1733"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-05-17T17:15:00Z",
"severity": "HIGH"
},
"details": "Heap-based Buffer Overflow in GitHub repository vim/vim prior to 8.2.",
"id": "GHSA-x282-2jwx-hvgg",
"modified": "2022-05-27T00:01:39Z",
"published": "2022-05-18T00:00:36Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-1733"
},
{
"type": "WEB",
"url": "https://github.com/vim/vim/commit/60ae0e71490c97f2871a6344aca61cacf220f813"
},
{
"type": "WEB",
"url": "https://huntr.dev/bounties/6ff03b27-472b-4bef-a2bf-410fae65ff0a"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BFAZTAT5CZC2R6KYDYA2HBAVEDSIX6MW"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IUPOLEX5GXC733HL4EFYMHFU7NISJJZG"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QKIX5HYKWXWG6QBCPPTPQ53GNOFHSAIS"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202208-32"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202305-16"
},
{
"type": "WEB",
"url": "https://support.apple.com/kb/HT213488"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2022/Oct/28"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2022/Oct/41"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/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
Use an abstraction library to abstract away risky APIs. Not a complete solution.
Mitigation MIT-10
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
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
Implement and perform bounds checking on input.
Mitigation
Strategy: Libraries or Frameworks
Do not use dangerous functions such as gets. Look for their safe equivalent, which checks for the boundary.
Mitigation
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.