Network Operations Vulnerability in FreeBSD Capabilities Service
CVE-2026-45254

Currently unrated

Key Information:

Vendor

FreeBSD

Status
FreeBSD
Vendor
CVE Published:
21 May 2026

What is CVE-2026-45254?

The cap_net service in FreeBSD contains a vulnerability where a key absent from the old limit configuration is incorrectly allowed, permitting unintended network operations. This oversight can result in a process gaining elevated permissions, potentially leading to a breach in security for systems that were otherwise restricted in their network capabilities.

Affected Version(s)

FreeBSD 15.0-RELEASE

FreeBSD 14.4-RELEASE

FreeBSD 14.3-RELEASE

References

https://security.freebsd.org/advisories/FreeBSD-SA-26:24....
vendor-advisory

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Joshua Rogers of AISLE Research Team
.