CVE-2025-5914: libarchive Integer Overflow or Wraparound

Vulnerability summary

CVE-2025-5914 is a high (CVSS 7.8) Integer Overflow or Wraparound vulnerability in libarchive. EPSS estimates a 0.44% chance of exploitation in the next 30 days, higher than 37.2% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 09-06-2025
   PublishedVulnerability first disclosed.
2. 12-10-2026
   Last modifiedVulnerability information updated.

Description

A vulnerability has been identified in the libarchive library, specifically within the archive_read_format_rar_seek_data() function. This flaw involves an integer overflow that can ultimately lead to a double-free condition. Exploiting a double-free vulnerability can result in memory corruption, enabling an attacker to execute arbitrary code or cause a denial-of-service condition.

• CWE-190Integer Overflow or WraparoundThe product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.