BSD Ports

OpenVPN: denial of service

· CVE-2026-84732 · VuXML entry

OpenVPN team reports: OpenVPN 2.x allows attackers to potentially cause a denial of service against the control channel reliability layer, either by driving the reliable TLS retransmission timeout to grow without bound, or by sending acknowledgements for packets that cannot be outstanding.

Affected versions

By system

1 still vulnerable, 1 fixed. Where VuXML applies (FreeBSD, DragonFly, FreeBSD's derivatives) a port is vulnerable while its version is in a range; pkgsrc says itself whether it lists a CVE of this advisory; OpenBSD and MidnightBSD keep no list this site reads, so their row is only an estimate: FreeBSD's ranges applied to upstream's version.

SystemPortVersionStateFixed
DragonFlysecurity/openvpn2.6.14 vulnerable since 2026-09-04
OpenBSDnet/openvpn2.7.8 out of range, by version
NetBSDnet/openvpn2.7.7 not listed
MidnightBSDsecurity/openvpn2.6.14_1 in range, by version
FreeBSDsecurity/openvpn2.7.8 fixed (1 days after)