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().
6273 vulnerabilities reference this CWE, most recent first.
GHSA-H7QM-F9J7-JR28
Vulnerability from github – Published: 2026-03-10 18:31 – Updated: 2026-03-10 18:31Integer overflow or wraparound in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to execute code over a network.
{
"affected": [],
"aliases": [
"CVE-2026-25172"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-10T18:18:31Z",
"severity": "HIGH"
},
"details": "Integer overflow or wraparound in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to execute code over a network.",
"id": "GHSA-h7qm-f9j7-jr28",
"modified": "2026-03-10T18:31:20Z",
"published": "2026-03-10T18:31:20Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-25172"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-25172"
}
],
"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-H8F2-6XFM-5CJF
Vulnerability from github – Published: 2026-10-12 18:31 – Updated: 2026-10-12 18:31FreeRDP 3.10.0 through 3.32.2 contains a heap buffer overflow in the WinPR png_write_data callback that writes past the buffer after a realloc failure. A malicious RDP clipboard peer can supply a large CF_DIB image that triggers out-of-bounds memcpy during PNG conversion, causing a client crash.
{
"affected": [],
"aliases": [
"CVE-2026-109256"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-10-12T17:17:17Z",
"severity": "MODERATE"
},
"details": "FreeRDP 3.10.0 through 3.32.2 contains a heap buffer overflow in the WinPR png_write_data callback that writes past the buffer after a realloc failure. A malicious RDP clipboard peer can supply a large CF_DIB image that triggers out-of-bounds memcpy during PNG conversion, causing a client crash.",
"id": "GHSA-h8f2-6xfm-5cjf",
"modified": "2026-10-12T18:31:39Z",
"published": "2026-10-12T18:31:39Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-wf3x-658c-52m5"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-109256"
},
{
"type": "WEB",
"url": "https://www.vulncheck.com/advisories/freerdp-3.10.0-through-3.32.2-heap-buffer-overflow-in-winpr-png-conversion"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/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-H8R6-J72F-CCJH
Vulnerability from github – Published: 2026-09-08 21:34 – Updated: 2026-09-10 15:33In p2p_process_prov_disc_bootstrap_req of p2p_pd.c, there is a possible out of bounds write due to a heap buffer overflow. This could lead to remote (proximal/adjacent) code execution with no additional execution privileges needed. User interaction is not needed for exploitation.
{
"affected": [],
"aliases": [
"CVE-2026-28662"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-08T19:17:56Z",
"severity": "HIGH"
},
"details": "In p2p_process_prov_disc_bootstrap_req of p2p_pd.c, there is a possible out of bounds write due to a heap buffer overflow. This could lead to remote (proximal/adjacent) code execution with no additional execution privileges needed. User interaction is not needed for exploitation.",
"id": "GHSA-h8r6-j72f-ccjh",
"modified": "2026-09-10T15:33:00Z",
"published": "2026-09-08T21:34:15Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-28662"
},
{
"type": "WEB",
"url": "https://source.android.com/docs/security/bulletin/2026/2026-09-01"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-H8RM-7P58-MX4H
Vulnerability from github – Published: 2025-03-11 18:32 – Updated: 2025-03-11 18:32InDesign Desktop versions ID20.1, ID19.5.2 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-2025-27177"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-03-11T18:15:36Z",
"severity": "HIGH"
},
"details": "InDesign Desktop versions ID20.1, ID19.5.2 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-h8rm-7p58-mx4h",
"modified": "2025-03-11T18:32:21Z",
"published": "2025-03-11T18:32:21Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-27177"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/indesign/apsb25-19.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-H8WC-QX72-P46V
Vulnerability from github – Published: 2026-10-13 21:34 – Updated: 2026-10-13 21:34Heap-based buffer overflow in Microsoft Windows Media Foundation allows an authorized attacker to elevate privileges locally.
{
"affected": [],
"aliases": [
"CVE-2026-70278"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-10-13T19:19:47Z",
"severity": "HIGH"
},
"details": "Heap-based buffer overflow in Microsoft Windows Media Foundation allows an authorized attacker to elevate privileges locally.",
"id": "GHSA-h8wc-qx72-p46v",
"modified": "2026-10-13T21:34:20Z",
"published": "2026-10-13T21:34:20Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-70278"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70278"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-H8WR-G7F7-2XMR
Vulnerability from github – Published: 2024-05-03 03:31 – Updated: 2024-05-03 03:31PDF-XChange Editor PDF File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of PDF-XChange Editor. 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 PDF 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-21762.
{
"affected": [],
"aliases": [
"CVE-2023-42076"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-03T03:15:43Z",
"severity": "HIGH"
},
"details": "PDF-XChange Editor PDF File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of PDF-XChange Editor. 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 PDF 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-21762.",
"id": "GHSA-h8wr-g7f7-2xmr",
"modified": "2024-05-03T03:31:01Z",
"published": "2024-05-03T03:31:01Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-42076"
},
{
"type": "WEB",
"url": "https://www.tracker-software.com/support/security-bulletins.html"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-23-1377"
}
],
"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-H92R-XJ8G-2XQW
Vulnerability from github – Published: 2026-08-20 18:30 – Updated: 2026-08-20 18:30Sony XAV-9500ES AVRCP_Br_Response_Parser Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Sony XAV-9500ES devices. An attacker must first obtain the ability to pair a malicious Bluetooth device with the target system in order to exploit this vulnerability.
The specific flaw exists within the handling of AVRCP 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 the device. Was ZDI-CAN-28995.
{
"affected": [],
"aliases": [
"CVE-2026-18282"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-08-20T17:17:24Z",
"severity": "HIGH"
},
"details": "Sony XAV-9500ES AVRCP_Br_Response_Parser Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Sony XAV-9500ES devices. An attacker must first obtain the ability to pair a malicious Bluetooth device with the target system in order to exploit this vulnerability.\n\nThe specific flaw exists within the handling of AVRCP 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 the device. Was ZDI-CAN-28995.",
"id": "GHSA-h92r-xj8g-2xqw",
"modified": "2026-08-20T18:30:56Z",
"published": "2026-08-20T18:30:56Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-18282"
},
{
"type": "WEB",
"url": "https://www.sony.com/electronics/support/mobile-cd-players-digital-media-players-xav-series/xav-9500es/software/00274922"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-26-475"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-H943-HRX6-86CQ
Vulnerability from github – Published: 2026-03-19 12:30 – Updated: 2026-03-23 00:31XML::Parser versions through 2.47 for Perl could overflow the pre-allocated buffer size cause a heap corruption (double free or corruption) and crashes.
A :utf8 PerlIO layer, parse_stream() in Expat.xs could overflow the XML input buffer because Perl's read() returns decoded characters while SvPV() gives back multi-byte UTF-8 bytes that can exceed the pre-allocated buffer size. This can cause heap corruption (double free or corruption) and crashes.
{
"affected": [],
"aliases": [
"CVE-2006-10002"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-19T12:16:16Z",
"severity": "CRITICAL"
},
"details": "XML::Parser versions through 2.47 for Perl could overflow the pre-allocated buffer size cause a heap corruption (double free or corruption) and crashes.\n\nA :utf8 PerlIO layer, parse_stream() in Expat.xs could overflow the XML input buffer because Perl\u0027s read() returns decoded characters while SvPV() gives back multi-byte UTF-8 bytes that can exceed the pre-allocated buffer size. This can cause heap corruption (double free or corruption) and crashes.",
"id": "GHSA-h943-hrx6-86cq",
"modified": "2026-03-23T00:31:07Z",
"published": "2026-03-19T12:30:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2006-10002"
},
{
"type": "WEB",
"url": "https://github.com/cpan-authors/XML-Parser/issues/64"
},
{
"type": "WEB",
"url": "https://github.com/cpan-authors/XML-Parser/commit/56b0509dfc6b559cd7555ea81ee62e3622069255.patch"
},
{
"type": "WEB",
"url": "https://github.com/cpan-authors/XML-Parser/commit/6b291f4d260fc124a6ec80382b87a918f372bc6b.patch"
},
{
"type": "WEB",
"url": "https://metacpan.org/release/TODDR/XML-Parser-2.46/changes"
},
{
"type": "WEB",
"url": "https://rt.cpan.org/Ticket/Display.html?id=19859"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2026/03/19/1"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2026/03/22/3"
}
],
"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-H948-X7VM-X59C
Vulnerability from github – Published: 2026-01-23 06:31 – Updated: 2026-06-30 03:35GIMP PSP File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GIMP. 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 PSP files. 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 the current process. Was ZDI-CAN-28232.
{
"affected": [],
"aliases": [
"CVE-2025-15059"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-01-23T04:16:00Z",
"severity": "HIGH"
},
"details": "GIMP PSP File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GIMP. 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 PSP files. 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 the current process. Was ZDI-CAN-28232.",
"id": "GHSA-h948-x7vm-x59c",
"modified": "2026-06-30T03:35:30Z",
"published": "2026-01-23T06:31:23Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-15059"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:2707"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:2930"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:2950"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:2953"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:2969"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2025-15059"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2432296"
},
{
"type": "WEB",
"url": "https://gitlab.gnome.org/GNOME/gimp/-/commit/03575ac8cbb0ef3103b0a15d6598475088dcc15e"
},
{
"type": "WEB",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-15059.json"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-25-1196"
}
],
"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-H94C-XR4C-WQFM
Vulnerability from github – Published: 2026-08-25 18:31 – Updated: 2026-08-25 18:31Substance3D - Designer is 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-2026-48432"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-08-25T18:17:55Z",
"severity": "HIGH"
},
"details": "Substance3D - Designer is 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-h94c-xr4c-wqfm",
"modified": "2026-08-25T18:31:58Z",
"published": "2026-08-25T18:31:58Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-48432"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/substance3d_designer/apsb26-115.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"
}
]
}
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.