| Name | CVE-2026-25075 |
| Description | strongSwan versions 4.5.0 prior to 6.0.5 contain an integer underflow ... |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DSA-6176-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| strongswan (PTS) | bullseye | 5.9.1-1+deb11u4 | vulnerable |
| bullseye (security) | 5.9.1-1+deb11u5 | vulnerable |
| bookworm | 5.9.8-5+deb12u2 | vulnerable |
| bookworm (security) | 5.9.8-5+deb12u3 | fixed |
| trixie | 6.0.1-6+deb13u2 | vulnerable |
| trixie (security) | 6.0.1-6+deb13u4 | fixed |
| forky, sid | 6.0.4-1 | vulnerable |
The information below is based on the following data on fixed versions.
Notes
https://www.strongswan.org/blog/2026/03/23/strongswan-vulnerability-(cve-2026-25075).html
Patch: https://download.strongswan.org/security/CVE-2026-25075/