Integer overflow in Libarchive

CVE-2025-5916

A vulnerability has been identified in the libarchive library. This flaw involves an integer overflow that can be triggered when processing a Web Archive (WARC) file that claims to have more than INT64_MAX - 4 content bytes. An attacker co…

Vulnerability class: Integer Overflow

EPSS: 0.002 (5.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.9 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:L.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-5916?
CVE-2025-5916 is a low-severity vulnerability in Libarchive, classified under Integer Overflow or Wraparound. CVSS score: 3.9/10. Published 2025-06-09.
How severe is CVE-2025-5916?
Low severity. CVSS v3 base score is 3.9 out of 10.
Is CVE-2025-5916 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.