CVE-2025-66866: GNU Binutils

High severity, CVSS 7.5. EPSS: 0.3% chance of exploitation in the next 30 days.

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

Affected products

• GNU Binutils: version 2.26 only

Published 2025-12-29. Last modified 2026-06-17.