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-P246-2WQM-73PP
Vulnerability from github – Published: 2025-01-14 18:32 – Updated: 2025-01-14 18:32Windows Telephony Service Remote Code Execution Vulnerability
{
"affected": [],
"aliases": [
"CVE-2025-21411"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-01-14T18:16:04Z",
"severity": "HIGH"
},
"details": "Windows Telephony Service Remote Code Execution Vulnerability",
"id": "GHSA-p246-2wqm-73pp",
"modified": "2025-01-14T18:32:06Z",
"published": "2025-01-14T18:32:06Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21411"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21411"
}
],
"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-P29Q-VGM8-8CRH
Vulnerability from github – Published: 2025-07-08 18:31 – Updated: 2025-07-08 18:31Heap-based buffer overflow in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to execute code over a network.
{
"affected": [],
"aliases": [
"CVE-2025-49673"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-07-08T17:15:51Z",
"severity": "HIGH"
},
"details": "Heap-based buffer overflow in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to execute code over a network.",
"id": "GHSA-p29q-vgm8-8crh",
"modified": "2025-07-08T18:31:46Z",
"published": "2025-07-08T18:31:46Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-49673"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49673"
}
],
"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-P2VQ-F9RC-V3C2
Vulnerability from github – Published: 2026-07-14 18:32 – Updated: 2026-07-14 18:32Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
{
"affected": [],
"aliases": [
"CVE-2026-50675"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-14T17:17:02Z",
"severity": "HIGH"
},
"details": "Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.",
"id": "GHSA-p2vq-f9rc-v3c2",
"modified": "2026-07-14T18:32:06Z",
"published": "2026-07-14T18:32:05Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-50675"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50675"
}
],
"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-P342-GC5G-728W
Vulnerability from github – Published: 2026-07-14 18:32 – Updated: 2026-07-14 18:32Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally.
{
"affected": [],
"aliases": [
"CVE-2026-55130"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-14T18:18:19Z",
"severity": "HIGH"
},
"details": "Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally.",
"id": "GHSA-p342-gc5g-728w",
"modified": "2026-07-14T18:32:35Z",
"published": "2026-07-14T18:32:35Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-55130"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55130"
}
],
"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-P34P-M244-F7PP
Vulnerability from github – Published: 2025-04-08 18:34 – Updated: 2025-04-08 18:34Integer overflow or wraparound in Windows USB Print Driver allows an authorized attacker to elevate privileges locally.
{
"affected": [],
"aliases": [
"CVE-2025-26639"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-04-08T18:15:47Z",
"severity": "HIGH"
},
"details": "Integer overflow or wraparound in Windows USB Print Driver allows an authorized attacker to elevate privileges locally.",
"id": "GHSA-p34p-m244-f7pp",
"modified": "2025-04-08T18:34:45Z",
"published": "2025-04-08T18:34:45Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-26639"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-26639"
}
],
"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-P365-9MQ8-7R2Q
Vulnerability from github – Published: 2023-03-28 21:30 – Updated: 2023-04-03 21:32This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Canon imageCLASS MF644Cdw 10.02 printers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the CADM service. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the service account. Was ZDI-CAN-15802.
{
"affected": [],
"aliases": [
"CVE-2022-24672"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-03-28T19:15:00Z",
"severity": "HIGH"
},
"details": "This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Canon imageCLASS MF644Cdw 10.02 printers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the CADM service. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the service account. Was ZDI-CAN-15802.",
"id": "GHSA-p365-9mq8-7r2q",
"modified": "2023-04-03T21:32:47Z",
"published": "2023-03-28T21:30:20Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-24672"
},
{
"type": "WEB",
"url": "https://www.usa.canon.com/support/canon-product-advisories/canon-laser-printer-inkjet-printer-and-small-office-multifunctio"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-22-514"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-P36C-2MV6-8M8Q
Vulnerability from github – Published: 2023-08-03 18:30 – Updated: 2024-04-04 06:31A flaw was found in the QEMU virtual crypto device while handling data encryption/decryption requests in virtio_crypto_handle_sym_req. There is no check for the value of src_len and dst_len in virtio_crypto_sym_op_helper, potentially leading to a heap buffer overflow when the two values differ.
{
"affected": [],
"aliases": [
"CVE-2023-3180"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-08-03T15:15:29Z",
"severity": "MODERATE"
},
"details": "A flaw was found in the QEMU virtual crypto device while handling data encryption/decryption requests in virtio_crypto_handle_sym_req. There is no check for the value of `src_len` and `dst_len` in virtio_crypto_sym_op_helper, potentially leading to a heap buffer overflow when the two values differ.",
"id": "GHSA-p36c-2mv6-8m8q",
"modified": "2024-04-04T06:31:44Z",
"published": "2023-08-03T18:30:35Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-3180"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2023-3180"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2222424"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2023/10/msg00006.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MURWGXDIF2WTDXV36T6HFJDBL632AO7R"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20230831-0008"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-P3Q5-QXHP-FPCG
Vulnerability from github – Published: 2023-06-07 03:30 – Updated: 2025-11-04 00:30Due to failure in validating the length provided by an attacker-crafted RTPS packet, Wireshark version 4.0.5 and prior, by default, is susceptible to a heap-based buffer overflow, and possibly code execution in the context of the process running Wireshark.
{
"affected": [],
"aliases": [
"CVE-2023-0666"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-06-07T03:15:09Z",
"severity": "MODERATE"
},
"details": "Due to failure in validating the length provided by an attacker-crafted RTPS packet, Wireshark version 4.0.5 and prior, by default, is susceptible to a heap-based buffer overflow, and possibly code execution in the context of the process running Wireshark.",
"id": "GHSA-p3q5-qxhp-fpcg",
"modified": "2025-11-04T00:30:37Z",
"published": "2023-06-07T03:30:23Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-0666"
},
{
"type": "WEB",
"url": "https://gitlab.com/wireshark/wireshark/-/issues/19085"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/09/msg00049.html"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202309-02"
},
{
"type": "WEB",
"url": "https://takeonme.org/cves/CVE-2023-0666.html"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2023/dsa-5429"
},
{
"type": "WEB",
"url": "https://www.wireshark.org/docs/relnotes/wireshark-4.0.6.html"
},
{
"type": "WEB",
"url": "https://www.wireshark.org/security/wnpa-sec-2023-18.html"
}
],
"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-P47H-X29H-RVVM
Vulnerability from github – Published: 2025-03-28 18:33 – Updated: 2025-11-03 21:33heap-buffer overflow in fig2dev in version 3.2.9a allows an attacker to availability via local input manipulation via create_line_with_spline.
{
"affected": [],
"aliases": [
"CVE-2025-31164"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-03-28T18:15:18Z",
"severity": "MODERATE"
},
"details": "heap-buffer overflow in fig2dev in version 3.2.9a\u00a0allows an attacker to availability via local input manipulation via\u00a0 create_line_with_spline.",
"id": "GHSA-p47h-x29h-rvvm",
"modified": "2025-11-03T21:33:13Z",
"published": "2025-03-28T18:33:38Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-31164"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/04/msg00030.html"
},
{
"type": "WEB",
"url": "https://sourceforge.net/p/mcj/tickets/184"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-P4HQ-9RW5-2CWC
Vulnerability from github – Published: 2024-10-03 18:30 – Updated: 2024-10-03 21:31Bandisoft BandiView 7.05 is vulnerable to Buffer Overflow via sub_0x410d1d. The vulnerability occurs due to insufficient validation of PSD files.
{
"affected": [],
"aliases": [
"CVE-2024-45872"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-10-03T17:15:14Z",
"severity": "MODERATE"
},
"details": "Bandisoft BandiView 7.05 is vulnerable to Buffer Overflow via sub_0x410d1d. The vulnerability occurs due to insufficient validation of PSD files.",
"id": "GHSA-p4hq-9rw5-2cwc",
"modified": "2024-10-03T21:31:04Z",
"published": "2024-10-03T18:30:36Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-45872"
},
{
"type": "WEB",
"url": "https://github.com/Jaecho6053/BandiView_PoC"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
"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.