What is CVE-2025-66861?

CVE-2025-66861 is a low-severity vulnerability in Gnu Binutils, classified under Uncontrolled Resource Consumption. CVSS score: 2.5/10. Published 2025-12-29.

How severe is CVE-2025-66861?

Low severity. CVSS v3 base score is 2.5 out of 10.

Resource exhaustion in Gnu Binutils

CVE-2025-66861

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

Vulnerability class: DoS (Denial of Service)

EPSS: 0.001 (2.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 2.5 (Low). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L.

Affected products

Gnu Binutils — versions 2.26
N/a — versions n/a

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

References

cve@mitre.org (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2025-66861?: CVE-2025-66861 is a low-severity vulnerability in Gnu Binutils, classified under Uncontrolled Resource Consumption. CVSS score: 2.5/10. Published 2025-12-29.
How severe is CVE-2025-66861?: Low severity. CVSS v3 base score is 2.5 out of 10.