Privilege escalation in Freebsd

CVE-2026-45259

sigqueue(2) was marked as permitted in capability mode with the introduction of Capsicum in 2011, but the implementation of kern_sigqueue did not include a capability mode check restricting signal delivery to the calling process's own PID…

EPSS: 0.001 (3.7th percentile) — read the EPSS interpretation.

Affected products

  • Freebsd — versions 15.0-RELEASE, 14.4-RELEASE, 14.3-RELEASE

Weakness classification (CWE)

References