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().
4164 vulnerabilities reference this CWE, most recent first.
GHSA-34J9-V3RV-PGG8
Vulnerability from github – Published: 2026-05-26 18:31 – Updated: 2026-05-26 18:31IBM HTTP Server 8.5, and 9.0 contains a buffer overflow vulnerability. A privileged user, authenticated to the Administration Server, could exploit this vulnerability to execute remote code or cause a denial of service.
{
"affected": [],
"aliases": [
"CVE-2026-8834"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-26T18:16:56Z",
"severity": "HIGH"
},
"details": "IBM HTTP Server 8.5, and 9.0 contains a buffer overflow vulnerability. A privileged user, authenticated to the Administration Server, could exploit this vulnerability to execute remote code or cause a denial of service.",
"id": "GHSA-34j9-v3rv-pgg8",
"modified": "2026-05-26T18:31:51Z",
"published": "2026-05-26T18:31:51Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-8834"
},
{
"type": "WEB",
"url": "https://www.ibm.com/support/pages/node/7274065"
}
],
"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-34QX-MF6R-5F7M
Vulnerability from github – Published: 2024-05-03 03:31 – Updated: 2025-11-04 21:31GIMP PSD 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 PSD 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 arbitrary code in the context of the current process. Was ZDI-CAN-22094.
{
"affected": [],
"aliases": [
"CVE-2023-44442"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-03T03:15:59Z",
"severity": "HIGH"
},
"details": "GIMP PSD 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 PSD 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 arbitrary code in the context of the current process. Was ZDI-CAN-22094.",
"id": "GHSA-34qx-mf6r-5f7m",
"modified": "2025-11-04T21:31:29Z",
"published": "2024-05-03T03:31:05Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-44442"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2023/11/msg00015.html"
},
{
"type": "WEB",
"url": "https://www.gimp.org/news/2023/11/07/gimp-2-10-36-released"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-23-1594"
}
],
"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-34V3-RP23-947C
Vulnerability from github – Published: 2022-05-24 17:39 – Updated: 2025-11-04 21:30A flaw was found in dnsmasq before version 2.83. A heap-based buffer overflow was discovered in the way RRSets are sorted before validating with DNSSEC data. An attacker on the network, who can forge DNS replies such as that they are accepted as valid, could use this flaw to cause a buffer overflow with arbitrary data in a heap memory segment, possibly executing code on the machine. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
{
"affected": [],
"aliases": [
"CVE-2020-25681"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-01-20T17:15:00Z",
"severity": "HIGH"
},
"details": "A flaw was found in dnsmasq before version 2.83. A heap-based buffer overflow was discovered in the way RRSets are sorted before validating with DNSSEC data. An attacker on the network, who can forge DNS replies such as that they are accepted as valid, could use this flaw to cause a buffer overflow with arbitrary data in a heap memory segment, possibly executing code on the machine. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.",
"id": "GHSA-34v3-rp23-947c",
"modified": "2025-11-04T21:30:24Z",
"published": "2022-05-24T17:39:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-25681"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1881875"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2021/03/msg00027.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QGB7HL3OWHTLEPSMLDGOMXQKG3KM2QME"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WYW3IR6APUSKOYKL5FT3ACTIHWHGQY32"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QGB7HL3OWHTLEPSMLDGOMXQKG3KM2QME"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WYW3IR6APUSKOYKL5FT3ACTIHWHGQY32"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202101-17"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2021/dsa-4844"
},
{
"type": "WEB",
"url": "https://www.jsof-tech.com/disclosures/dnspooq"
},
{
"type": "WEB",
"url": "https://www.kb.cert.org/vuls/id/434904"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-356H-6P87-PGW2
Vulnerability from github – Published: 2024-08-13 18:31 – Updated: 2024-08-13 18:31Windows Network Virtualization Remote Code Execution Vulnerability
{
"affected": [],
"aliases": [
"CVE-2024-38160"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-08-13T18:15:23Z",
"severity": "CRITICAL"
},
"details": "Windows Network Virtualization Remote Code Execution Vulnerability",
"id": "GHSA-356h-6p87-pgw2",
"modified": "2024-08-13T18:31:16Z",
"published": "2024-08-13T18:31:16Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38160"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-38160"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-356Q-8VGJ-62XF
Vulnerability from github – Published: 2024-10-08 09:30 – Updated: 2024-12-10 15:32A vulnerability has been identified in Simcenter Nastran 2306 (All versions), Simcenter Nastran 2312 (All versions), Simcenter Nastran 2406 (All versions < V2406.5000). The affected application is vulnerable to heap-based buffer overflow while parsing specially crafted BDF files. This could allow an attacker to execute code in the context of the current process.
{
"affected": [],
"aliases": [
"CVE-2024-41981"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-10-08T09:15:11Z",
"severity": "HIGH"
},
"details": "A vulnerability has been identified in Simcenter Nastran 2306 (All versions), Simcenter Nastran 2312 (All versions), Simcenter Nastran 2406 (All versions \u003c V2406.5000). The affected application is vulnerable to heap-based buffer overflow while parsing specially crafted BDF files. This could allow an attacker to execute code in the context of the current process.",
"id": "GHSA-356q-8vgj-62xf",
"modified": "2024-12-10T15:32:30Z",
"published": "2024-10-08T09:30:53Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-41981"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-852501.html"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-881356.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"
},
{
"score": "CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:P/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-35CC-32CJ-VR6G
Vulnerability from github – Published: 2022-05-24 16:56 – Updated: 2024-04-04 01:57Heap buffer overflow in the TFTP protocol handler in cURL 7.19.4 to 7.65.3.
{
"affected": [],
"aliases": [
"CVE-2019-5482"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-09-16T19:15:00Z",
"severity": "CRITICAL"
},
"details": "Heap buffer overflow in the TFTP protocol handler in cURL 7.19.4 to 7.65.3.",
"id": "GHSA-35cc-32cj-vr6g",
"modified": "2024-04-04T01:57:47Z",
"published": "2022-05-24T16:56:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-5482"
},
{
"type": "WEB",
"url": "https://curl.haxx.se/docs/CVE-2019-5482.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6CI4QQ2RSZX4VCFM76SIWGKY6BY7UWIC"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RGDVKSLY5JUNJRLYRUA6CXGQ2LM63XC3"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UA7KDM2WPM5CJDDGOEGFV6SSGD2J7RNT"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6CI4QQ2RSZX4VCFM76SIWGKY6BY7UWIC"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RGDVKSLY5JUNJRLYRUA6CXGQ2LM63XC3"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UA7KDM2WPM5CJDDGOEGFV6SSGD2J7RNT"
},
{
"type": "WEB",
"url": "https://seclists.org/bugtraq/2020/Feb/36"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202003-29"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20191004-0003"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20200416-0003"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2020/dsa-4633"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpuapr2020.html"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpujan2020.html"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpuoct2020.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00048.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00055.html"
}
],
"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-35F4-VMXG-WG9R
Vulnerability from github – Published: 2022-02-19 00:01 – Updated: 2022-02-27 00:00This vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley MicroStation CONNECT 10.16.0.80. 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 BMP images. 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-15400.
{
"affected": [],
"aliases": [
"CVE-2021-46606"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-02-18T20:15:00Z",
"severity": "HIGH"
},
"details": "This vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley MicroStation CONNECT 10.16.0.80. 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 BMP images. 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-15400.",
"id": "GHSA-35f4-vmxg-wg9r",
"modified": "2022-02-27T00:00:22Z",
"published": "2022-02-19T00:01:14Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-46606"
},
{
"type": "WEB",
"url": "https://www.bentley.com/en/common-vulnerability-exposure/BE-2021-0002"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-22-193"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-35FP-M999-3H79
Vulnerability from github – Published: 2026-02-10 18:30 – Updated: 2026-02-10 18:30Heap-based buffer overflow in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
{
"affected": [],
"aliases": [
"CVE-2026-21236"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-02-10T18:16:24Z",
"severity": "HIGH"
},
"details": "Heap-based buffer overflow in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.",
"id": "GHSA-35fp-m999-3h79",
"modified": "2026-02-10T18:30:41Z",
"published": "2026-02-10T18:30:41Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-21236"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21236"
}
],
"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-35W3-PJM6-WJ95
Vulnerability from github – Published: 2026-06-19 19:36 – Updated: 2026-06-19 19:36Summary
Oj.dump in object mode is vulnerable to a heap buffer overflow when serializing Exception objects with a large :indent value. The serializer allocates a buffer sized for the object's attributes but does not account for the indent bytes added on each write. With indent: 5000, the accumulation of 5,000-byte indent strings overflows the 13,150-byte heap allocation, corrupting adjacent heap memory.
Version
- Software: oj gem
- Affected: all versions with
ext/oj/dump.h - Latest tested: 3.17.1 (confirmed present)
Details
ext/oj/dump.h, line 75–77:
static void fill_indent(Out out, int depth) {
if (0 < out->opts->indent) {
memset(out->buf + out->cur, ' ', (size_t)(out->opts->indent * depth));
When dumping an Exception object in :object mode, dump_obj_attrs calls fill_indent repeatedly for each attribute. The buffer is pre-allocated based on the serialized content but not the indentation overhead. With indent: 5000 the indent block for a nested object exceeds the remaining buffer space, producing a heap-buffer-overflow of size 5,000 at the end of the allocated region.
ASAN report:
==101656==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x527000022c5e
WRITE of size 5000 at 0x527000022c5e thread T0
#0 memset
#1 fill_indent /ext/oj/dump.h:77
#2 dump_obj_attrs /ext/oj/dump_object.c:552
#3 dump_obj /ext/oj/dump_object.c:80
#4 oj_dump_obj_val /ext/oj/dump_object.c:708
#5 oj_dump_obj_to_json_using_params /ext/oj/dump.c:817
#6 dump_body /ext/oj/oj.c:1429
#7 dump /ext/oj/oj.c:1480
0x527000022c5e is located 0 bytes after 13150-byte region [0x52700001f900, 0x527000022c5e)
Reproduce
require "oj"
obj = Oj.load('{"^o":"RuntimeError"}', mode: :object)
Oj.dump(obj, mode: :object, indent: 5000)
Workarounds
This is at the discretion of the developer and not a public facing option so the workaround is the develop should not use extreme indents and should not offer the option for users to dump Ruby data with unlimited indentation size.
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c 3.17.2"
},
"package": {
"ecosystem": "RubyGems",
"name": "oj"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.17.3"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-54896"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": true,
"github_reviewed_at": "2026-06-19T19:36:47Z",
"nvd_published_at": null,
"severity": "HIGH"
},
"details": "### Summary\n\n`Oj.dump` in object mode is vulnerable to a heap buffer overflow when serializing Exception objects with a large `:indent` value. The serializer allocates a buffer sized for the object\u0027s attributes but does not account for the indent bytes added on each write. With `indent: 5000`, the accumulation of 5,000-byte indent strings overflows the 13,150-byte heap allocation, corrupting adjacent heap memory.\n\n### Version\n\n- **Software**: oj gem\n- **Affected**: all versions with `ext/oj/dump.h`\n- **Latest tested**: 3.17.1 (confirmed present)\n\n### Details\n\n`ext/oj/dump.h`, line 75\u201377:\n\n```c\nstatic void fill_indent(Out out, int depth) {\n if (0 \u003c out-\u003eopts-\u003eindent) {\n memset(out-\u003ebuf + out-\u003ecur, \u0027 \u0027, (size_t)(out-\u003eopts-\u003eindent * depth));\n```\n\nWhen dumping an Exception object in `:object` mode, `dump_obj_attrs` calls `fill_indent` repeatedly for each attribute. The buffer is pre-allocated based on the serialized content but not the indentation overhead. With `indent: 5000` the indent block for a nested object exceeds the remaining buffer space, producing a heap-buffer-overflow of size 5,000 at the end of the allocated region.\n\nASAN report:\n```\n==101656==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x527000022c5e\nWRITE of size 5000 at 0x527000022c5e thread T0\n #0 memset\n #1 fill_indent /ext/oj/dump.h:77\n #2 dump_obj_attrs /ext/oj/dump_object.c:552\n #3 dump_obj /ext/oj/dump_object.c:80\n #4 oj_dump_obj_val /ext/oj/dump_object.c:708\n #5 oj_dump_obj_to_json_using_params /ext/oj/dump.c:817\n #6 dump_body /ext/oj/oj.c:1429\n #7 dump /ext/oj/oj.c:1480\n0x527000022c5e is located 0 bytes after 13150-byte region [0x52700001f900, 0x527000022c5e)\n```\n\n### Reproduce\n\n```ruby\nrequire \"oj\"\nobj = Oj.load(\u0027{\"^o\":\"RuntimeError\"}\u0027, mode: :object)\nOj.dump(obj, mode: :object, indent: 5000)\n```\n\n### Workarounds\n\nThis is at the discretion of the developer and not a public facing option so the workaround is the develop should not use extreme indents and should not offer the option for users to dump Ruby data with unlimited indentation size.",
"id": "GHSA-35w3-pjm6-wj95",
"modified": "2026-06-19T19:36:47Z",
"published": "2026-06-19T19:36:47Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/ohler55/oj/security/advisories/GHSA-35w3-pjm6-wj95"
},
{
"type": "PACKAGE",
"url": "https://github.com/ohler55/oj"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "Oj: Heap Buffer Overflow in Oj.dump Exception Serialization via Large Indent"
}
GHSA-35XV-2QM4-86W9
Vulnerability from github – Published: 2025-10-14 12:31 – Updated: 2025-10-14 15:31In wlan AP driver, there is a possible out of bounds write due to an incorrect bounds check. This could lead to remote (proximal/adjacent) escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00418954; Issue ID: MSV-3569.
{
"affected": [],
"aliases": [
"CVE-2025-20720"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-10-14T10:15:36Z",
"severity": "HIGH"
},
"details": "In wlan AP driver, there is a possible out of bounds write due to an incorrect bounds check. This could lead to remote (proximal/adjacent) escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00418954; Issue ID: MSV-3569.",
"id": "GHSA-35xv-2qm4-86w9",
"modified": "2025-10-14T15:31:25Z",
"published": "2025-10-14T12:31:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-20720"
},
{
"type": "WEB",
"url": "https://corp.mediatek.com/product-security-bulletin/October-2025"
}
],
"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"
}
]
}
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.