------------------------------------------------------------------------- Debian LTS Advisory DLA-4653-2 debian-lts@lists.debian.org https://www.debian.org/lts/security/ Daniel Leidert July 06, 2026 https://wiki.debian.org/LTS ------------------------------------------------------------------------- Package : openvpn Version : 2.5.1-3+deb11u4 CVE ID : CVE-2026-12996 Debian Bug : 1141326 A regression has been discovered in the latest release of openvpn 2.5.1-3+deb11u3. The fix adressing CVE-2026-40215 contained a bug which could lead to segmentation faults. Furthermore, the function backported for the fix has recently been disovered to be vulnerable to CVE-2026- 12996. For Debian 11 bullseye, these problems have been fixed in version 2.5.1-3+deb11u4. We recommend that you upgrade your openvpn packages. For the detailed security status of openvpn please refer to its security tracker page at: https://security-tracker.debian.org/tracker/openvpn Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS
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