Home / mailings [SECURITY] [DSA 6069-1] openvpn security update
Posted on 03 December 2025
Debian Security Advisory- -------------------------------------------------------------------------
Debian Security Advisory DSA-6069-1 security@debian.org
https://www.debian.org/security/ Salvatore Bonaccorso
December 03, 2025 https://www.debian.org/security/faq
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Package : openvpn
CVE ID : CVE-2025-13086
Debian Bug : 1121086
It was discovered that openvpn, a virtual private network application,
does not properly handle HMAC verification checks. A remote attacker can
take advantage of this flaw to bypass source IP address validation.
For the oldstable distribution (bookworm), this problem has been fixed
in version 2.6.3-1+deb12u4.
For the stable distribution (trixie), this problem has been fixed in
version 2.6.14-1+deb13u1.
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 Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
Mailing list: debian-security-announce@lists.debian.org
