CVE-2025-66862

binutils: heap-based buffer over-read in gnu_special() in cplus-dem.c

Published Dec 29, 2025 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Description
A buffer overflow vulnerability in function gnu_special in file cplus-dem.c in BinUtils 2.26 allows attackers to cause a denial of service via crafted PE file.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
CPEs cpe:2.3:a:gnu:binutils:2.26:*:*:*:*:*:*:*
Type Values Removed Values Added
Title binutils: heap-based buffer over-read in gnu_special() in cplus-dem.c
Weaknesses CWE-125
References
Metrics threat_severity

None

threat_severity

Low

Type Values Removed Values Added
Weaknesses CWE-122
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'}

Type Values Removed Values Added
First Time appeared Gnu
Gnu binutils
Vendors & Products Gnu
Gnu binutils
Type Values Removed Values Added
Description A buffer overflow vulnerability in function gnu_special in file cplus-dem.c in BinUtils 2.26 allows attackers to cause a denial of service via crafted PE file.
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Dec 30, 2025, 3:21 PM
Reserved
Dec 8, 2025, 12:00 AM
Status
Analyzed
Published
Dec 29, 2025, 5:15 PM
Modified
Oct 7, 2026, 12:10 PM
Severity
Low
Public date
Dec 29, 2025, 12:00 AM