CVE-2025-66863 - Vulnerability Details - OpenCVE

An issue was discovered in function d_discriminator in file cp-demangle.c in BinUtils 2.26 allows attackers to cause a denial of service via crafted PE file.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation poc

Automatable yes

Technical Impact partial

Vendors	Products
Gnu	Binutils

No data.

No data.

References

Link	Providers
https://github.com/caozhzh/CRGF-Vul/blob/main/cxxfilt/crash2.md
https://nvd.nist.gov/vuln/detail/CVE-2025-66863
https://www.cve.org/CVERecord?id=CVE-2025-66863

History

Thu, 01 Jan 2026 00:15:00 +0000

Type	Values Removed	Values Added
Title		binutils: BinUtils: Denial of Service via crafted PE file
Weaknesses		CWE-125
References		https://nvd.nist.gov/vuln/detail/CVE-2025-66863 https://www.cve.org/CVERecord?id=CVE-2025-66863
Metrics	threat_severity `None`	threat_severity `Low`

Tue, 30 Dec 2025 16:15:00 +0000

Type	Values Removed	Values Added
Weaknesses		CWE-400
Metrics		cvssV3_1 `{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}` ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Mon, 29 Dec 2025 23:15:00 +0000

Type	Values Removed	Values Added
First Time appeared		Gnu Gnu binutils
Vendors & Products		Gnu Gnu binutils

Mon, 29 Dec 2025 16:45:00 +0000

Type	Values Removed	Values Added
Description		An issue was discovered in function d_discriminator in file cp-demangle.c in BinUtils 2.26 allows attackers to cause a denial of service via crafted PE file.
References		https://github.com/caozhzh/CRGF-Vul/blob/main/cxxfilt/crash2.md

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2025-12-29T00:00:00.000Z

Updated: 2025-12-30T15:19:15.437Z

Reserved: 2025-12-08T00:00:00.000Z

Link: CVE-2025-66863

Vulnrichment

Updated: 2025-12-30T15:19:08.540Z

NVD

Status : Awaiting Analysis

Published: 2025-12-29T17:15:46.203

Modified: 2025-12-31T20:43:25.830

Link: CVE-2025-66863

Redhat

Severity : Low

Publid Date: 2025-12-29T00:00:00Z

Links: CVE-2025-66863 - Bugzilla

{"bugzilla": {"description": "binutils: BinUtils: Denial of Service via crafted PE file", "id": "2425824", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2425824"}, "csaw": false, "cvss3": {"cvss3_base_score": "3.3", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L", "status": "draft"}, "cwe": "CWE-125", "details": ["An issue was discovered in function d_discriminator in file cp-demangle.c in BinUtils 2.26 allows attackers to cause a denial of service via crafted PE file.", "A flaw was found in BinUtils. Attackers can exploit this vulnerability by providing a specially crafted Portable Executable (PE) file. This can lead to a denial of service, making the affected application unavailable."], "mitigation": {"lang": "en:us", "value": "To reduce the risk of exploitation, users should avoid processing Portable Executable (PE) files from untrusted or unverified sources with BinUtils tools. Limiting the exposure of BinUtils to untrusted input can help prevent denial of service attacks."}, "name": "CVE-2025-66863", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "binutils", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "gcc-toolset-15-binutils", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "gdb", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "mingw-binutils", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Fix deferred", "package_name": "binutils", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "binutils", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "gdb", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "binutils", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "gcc-toolset-14-binutils", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "gcc-toolset-14-gdb", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "gcc-toolset-15-binutils", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "gcc-toolset-15-gdb", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "gdb", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "mingw-binutils", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "binutils", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "gcc-toolset-14-binutils", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "gcc-toolset-15-binutils", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "gdb", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "mingw-binutils", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "package_name": "rhcos", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2025-12-29T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-66863\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-66863\nhttps://github.com/caozhzh/CRGF-Vul/blob/main/cxxfilt/crash2.md"], "statement": "This vulnerability is rated Low for Red Hat products. The flaw in BinUtils allows for a denial of service when processing a specially crafted Portable Executable (PE) file. For a successful attack to take place the user needs to be tricked to process the maliciously crafted PE binary using the affected program. The consequences of a successful attack is also restricted to the single process instance reading the malicious file and does not have a system-wide effect, presenting a Low impact in the availability criteria.", "threat_severity": "Low"}