CVE-2025-66861: Low severity GNU binutils vulnerability
Published Dec 29, 2025
·Updated
An issue was discovered in function dunqualifiedname in file cp-demangle.c in BinUtils 2.26 allowing attackers to cause a denial of service via crafted PE file.
Affected Software
2 affected components
GNU binutils
GNU binutils=2.26
Event History
Dec 29, 2025
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
Description
Data Sourced
via NVD·05:15 PM
DescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2025-66861?
CVE-2025-66861 has been rated as a moderate severity vulnerability that can lead to denial of service.
2
How do I fix CVE-2025-66861?
To mitigate CVE-2025-66861, upgrade to the latest version of GNU BinUtils where the vulnerability has been addressed.
3
What systems are affected by CVE-2025-66861?
CVE-2025-66861 affects systems using GNU BinUtils version 2.26 and earlier.
4
What attack vector does CVE-2025-66861 utilize?
CVE-2025-66861 can be exploited via crafted PE files to trigger a denial of service.
5
Is there a workaround for CVE-2025-66861?
There are no known workarounds for CVE-2025-66861; updating the software is the recommended action.