CVE-2025-11840 GNU Binutils ldmisc.c vfinfo out-of-bounds
A local attacker can trigger an out-of-bounds read in GNU Binutils, potentially causing information disclosure or application crashes.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-11840?
CVE-2025-11840 is a medium-severity memory corruption vulnerability in Gnu Binutils, published on 16 Oct 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A weakness has been identified in GNU Binutils 2.45. The affected element is the function vfinfo of the file ldmisc.c. Executing a manipulation can lead to out-of-bounds read. The attack can only be executed locally. The exploit has been made available to the public and could be used for attacks. This patch is called 16357. It is best practice to apply a patch to resolve this issue.
Which versions are affected by CVE-2025-11840?
It affects 1 product.
Products include Gnu Binutils.
How do I fix CVE-2025-11840?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-11840 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-11840 exists.
Other vulnerabilities in Gnu Binutils
Sources
Also known as BELL-CVE-2025-11840, CLSA-2025-1766412859, DEBIAN-CVE-2025-11840, ECHO-d807-1cad-5f60, GHSA-jp92-pqpq-f69p, MINI-qc9v-cqhx-rpfm and 2 more.