CVE-2025-66862 Memory corruption in n/a
Attackers can cause a denial of service in BinUtils by providing a crafted PE file that triggers a buffer overflow.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-66862?
CVE-2025-66862 is a high-severity memory corruption vulnerability in Gnu Binutils, published on 29 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-122
Which versions are affected by CVE-2025-66862?
It affects 1 product.
Products include Gnu Binutils.
How do I fix CVE-2025-66862?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-66862 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-66862 exists.
Other vulnerabilities in Gnu Binutils
Sources
Also known as DEBIAN-CVE-2025-66862, ECHO-d4cb-fb13-fce0, GHSA-rhg5-g54m-7cq3, UBUNTU-CVE-2025-66862.