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().
6301 vulnerabilities reference this CWE, most recent first.
GHSA-7788-FH62-29RR
Vulnerability from github – Published: 2026-10-28 18:32 – Updated: 2026-10-28 18:32Alpine iLX-F511 Bluetooth OBEX Packet Handling Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows physically present attackers to execute arbitrary code on affected installations of Alpine iLX-F511 devices. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the handling of Bluetooth OBEX packets. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-29012.
{
"affected": [],
"aliases": [
"CVE-2026-118611"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-10-28T17:18:28Z",
"severity": "MODERATE"
},
"details": "Alpine iLX-F511 Bluetooth OBEX Packet Handling Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows physically present attackers to execute arbitrary code on affected installations of Alpine iLX-F511 devices. Authentication is not required to exploit this vulnerability.\n\nThe specific flaw exists within the handling of Bluetooth OBEX packets. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-29012.",
"id": "GHSA-7788-fh62-29rr",
"modified": "2026-10-28T18:32:08Z",
"published": "2026-10-28T18:32:08Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-118611"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-26-829"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-778X-F39R-XR3J
Vulnerability from github – Published: 2024-02-13 18:38 – Updated: 2024-02-13 18:38Microsoft WDAC OLE DB provider for SQL Server Remote Code Execution Vulnerability
{
"affected": [],
"aliases": [
"CVE-2024-21366"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-02-13T18:15:53Z",
"severity": "HIGH"
},
"details": "Microsoft WDAC OLE DB provider for SQL Server Remote Code Execution Vulnerability",
"id": "GHSA-778x-f39r-xr3j",
"modified": "2024-02-13T18:38:23Z",
"published": "2024-02-13T18:38:23Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-21366"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21366"
}
],
"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-77GW-4C87-G3XJ
Vulnerability from github – Published: 2026-10-13 21:36 – Updated: 2026-10-13 21:36Heap-based buffer overflow in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
{
"affected": [],
"aliases": [
"CVE-2026-88155"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-10-13T19:21:35Z",
"severity": "HIGH"
},
"details": "Heap-based buffer overflow in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.",
"id": "GHSA-77gw-4c87-g3xj",
"modified": "2026-10-13T21:36:47Z",
"published": "2026-10-13T21:36:47Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-88155"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88155"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-77H3-W9RX-HJ3Q
Vulnerability from github – Published: 2025-08-14 22:23 – Updated: 2025-08-14 22:23The get and set methods of the public trait scratchpad::Tracking interact with unsafe code regions in the crate, and they influence the computation of addresses returned as raw pointers. However, the trait itself is not marked as unsafe, meaning users may provide custom implementations under the assumption that the crate upholds all safety guarantees.
This becomes problematic because even safe implementations of get and set-written without using any unsafe code-can still result in ill-formed raw pointers. These pointers may later be dereferenced within safe APIs of the crate (e.g., marker::MarkerBack::allocate_slice_copy), potentially leading to arbitrary memory access or heap buffer overflows.
According to the penultimate commit, the crate is in maintenance mode awaiting a cleanup that will reduce the area of unsafe code. Note that the last commits to the repository are from 4 years ago.
{
"affected": [
{
"package": {
"ecosystem": "crates.io",
"name": "scratchpad"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "1.3.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": true,
"github_reviewed_at": "2025-08-14T22:23:02Z",
"nvd_published_at": null,
"severity": "MODERATE"
},
"details": "The `get` and `set` methods of the public trait `scratchpad::Tracking` interact with unsafe code regions in the crate, and they influence the computation of addresses returned as raw pointers. However, the trait itself is not marked as unsafe, meaning users may provide custom implementations under the assumption that the crate upholds all safety guarantees.\n\nThis becomes problematic because even safe implementations of `get` and `set`-written without using any unsafe code-can still result in ill-formed raw pointers. These pointers may later be dereferenced within safe APIs of the crate (e.g., `marker::MarkerBack::allocate_slice_copy`), potentially leading to arbitrary memory access or heap buffer overflows.\n\nAccording to the [penultimate commit](https://github.com/okready/scratchpad/commit/957dee1a3902f48600b06910e8e0b1d5ee7dab83), the crate is in maintenance mode awaiting a cleanup that will reduce the area of unsafe code. Note that the last commits to the repository are from 4 years ago.",
"id": "GHSA-77h3-w9rx-hj3q",
"modified": "2025-08-14T22:23:02Z",
"published": "2025-08-14T22:23:02Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/okready/scratchpad/issues/2"
},
{
"type": "PACKAGE",
"url": "https://github.com/okready/scratchpad"
},
{
"type": "WEB",
"url": "https://rustsec.org/advisories/RUSTSEC-2025-0049.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P",
"type": "CVSS_V4"
}
],
"summary": "User-defined implementations of the safe trait scratchpad::Tracking can cause heap buffer overflows"
}
GHSA-77HR-FPMG-VVGR
Vulnerability from github – Published: 2024-11-12 18:30 – Updated: 2024-11-12 18:30SQL Server Native Client Remote Code Execution Vulnerability
{
"affected": [],
"aliases": [
"CVE-2024-48998"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-11-12T18:15:37Z",
"severity": "HIGH"
},
"details": "SQL Server Native Client Remote Code Execution Vulnerability",
"id": "GHSA-77hr-fpmg-vvgr",
"modified": "2024-11-12T18:30:59Z",
"published": "2024-11-12T18:30:59Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-48998"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-48998"
}
],
"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-77MR-3X8W-8F7F
Vulnerability from github – Published: 2024-11-23 03:31 – Updated: 2024-11-23 03:31Trimble SketchUp Viewer SKP File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Trimble SketchUp Viewer. 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 parsing of SKP files. 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 current process. Was ZDI-CAN-19575.
{
"affected": [],
"aliases": [
"CVE-2024-7508"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-11-22T22:15:18Z",
"severity": "HIGH"
},
"details": "Trimble SketchUp Viewer SKP File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Trimble SketchUp Viewer. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.\n\nThe specific flaw exists within the parsing of SKP files. 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 current process. Was ZDI-CAN-19575.",
"id": "GHSA-77mr-3x8w-8f7f",
"modified": "2024-11-23T03:31:58Z",
"published": "2024-11-23T03:31:58Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-7508"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-24-1054"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-77VW-JRXP-2648
Vulnerability from github – Published: 2024-02-09 15:31 – Updated: 2024-02-15 06:31An issue in the imlib_free_image_and_decache function of imlib2 v1.9.1 allows attackers to cause a heap buffer overflow via parsing a crafted image.
{
"affected": [],
"aliases": [
"CVE-2024-25448"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-02-09T15:15:09Z",
"severity": "HIGH"
},
"details": "An issue in the imlib_free_image_and_decache function of imlib2 v1.9.1 allows attackers to cause a heap buffer overflow via parsing a crafted image.",
"id": "GHSA-77vw-jrxp-2648",
"modified": "2024-02-15T06:31:35Z",
"published": "2024-02-09T15:31:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-25448"
},
{
"type": "WEB",
"url": "https://github.com/derf/feh/issues/711"
},
{
"type": "WEB",
"url": "https://git.enlightenment.org/old/legacy-imlib2/issues/20"
}
],
"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-77WP-P4V3-XGJ7
Vulnerability from github – Published: 2025-05-30 06:30 – Updated: 2025-05-31 00:30hdf5 v1.14.6 was discovered to contain a heap buffer overflow via the H5VM_memcpyvv function.
{
"affected": [],
"aliases": [
"CVE-2025-44904"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-05-30T04:15:32Z",
"severity": "HIGH"
},
"details": "hdf5 v1.14.6 was discovered to contain a heap buffer overflow via the H5VM_memcpyvv function.",
"id": "GHSA-77wp-p4v3-xgj7",
"modified": "2025-05-31T00:30:28Z",
"published": "2025-05-30T06:30:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-44904"
},
{
"type": "WEB",
"url": "https://github.com/madao123123/crash_report/blob/main/hdf5_poc/hdf5_poc1.md"
}
],
"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-782M-C8CH-X5JC
Vulnerability from github – Published: 2026-10-12 18:31 – Updated: 2026-10-12 18:31FreeRDP 3.0.0 before 3.32.0 contains an integer truncation vulnerability in license_check_stream_length that allows a malicious RDP server to trigger a heap buffer overflow on 32-bit clients. Attackers can send a crafted SERVER_LICENSE_REQUEST with a large scopeCount that bypasses length checks, causing out-of-bounds writes leading to denial of service or remote code execution.
{
"affected": [],
"aliases": [
"CVE-2026-109255"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-10-12T17:17:16Z",
"severity": "MODERATE"
},
"details": "FreeRDP 3.0.0 before 3.32.0 contains an integer truncation vulnerability in license_check_stream_length that allows a malicious RDP server to trigger a heap buffer overflow on 32-bit clients. Attackers can send a crafted SERVER_LICENSE_REQUEST with a large scopeCount that bypasses length checks, causing out-of-bounds writes leading to denial of service or remote code execution.",
"id": "GHSA-782m-c8ch-x5jc",
"modified": "2026-10-12T18:31:38Z",
"published": "2026-10-12T18:31:38Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-hxw3-57rq-3v4m"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-109255"
},
{
"type": "WEB",
"url": "https://www.vulncheck.com/advisories/freerdp-3.0.0-before-3.32.0-heap-buffer-overflow-via-license-check-stream-length"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/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-782V-3M9C-G43P
Vulnerability from github – Published: 2026-10-13 21:34 – Updated: 2026-10-13 21:34Heap-based buffer overflow in Windows Sensor Data Service allows an authorized attacker to elevate privileges locally.
{
"affected": [],
"aliases": [
"CVE-2026-83639"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-10-13T19:20:04Z",
"severity": "HIGH"
},
"details": "Heap-based buffer overflow in Windows Sensor Data Service allows an authorized attacker to elevate privileges locally.",
"id": "GHSA-782v-3m9c-g43p",
"modified": "2026-10-13T21:34:30Z",
"published": "2026-10-13T21:34:30Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-83639"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83639"
}
],
"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.