CVE-2025-11840: gnu binutils Out-of-bounds Read

Vulnerability summary

CVE-2025-11840 is a medium (CVSS 5.5) Out-of-bounds Read vulnerability in gnu binutils. EPSS estimates a 0.28% chance of exploitation in the next 30 days, higher than 18.7% of scored vulnerabilities. 2 public exploits are recorded.

Timeline

1. 16-10-2025
   PublishedVulnerability first disclosed.
2. 15-10-2026
   Last modifiedVulnerability information updated.

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.

• CWE-125Out-of-bounds ReadThe product reads data past the end, or before the beginning, of the intended buffer.
• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferThe product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.