openvpn: Retransmissions of ACK packet ID in OpenVPN through 2.6.22 and 2.7.6 allow remote unauthenticated attackers to cause...
CVE-2026-84732 is fixed in 2 products on 1 platform, first by openvpn 2.7.0-1ubuntu1.3, released September 7, 2026. It is not reported as exploited. Patch Radar priority: Routine.
Retransmissions of ACK packet ID in OpenVPN through 2.6.22 and 2.7.6 allow remote unauthenticated attackers to cause a denial of service via crafted inputs that trigger a timeout integer overflow
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| openvpn · Debian 14 | 2.7.7-1 | DEBIAN-CVE-2026-84732 | Sep 10, 2026 |
| openvpn · Ubuntu 22.04.1 LTS (jammy) | 2.5.11-0ubuntu0.22.04.5 | openvpn 2.5.11-0ubuntu0.22.04.5 | Oct 1, 2026 |
| openvpn · Ubuntu 24.04.5 LTS (noble) | 2.6.19-0ubuntu0.24.04.4 | openvpn 2.6.19-0ubuntu0.24.04.4 | Oct 1, 2026 |
| openvpn · Ubuntu 26.04.1 LTS (resolute) | 2.7.0-1ubuntu1.3 | openvpn 2.7.0-1ubuntu1.3 | Sep 7, 2026 |
| openvpn · opensuse-leap 16.0 | 2.6.10-160000.5.1 | OPENSUSE-SU-2026:22072-1 | Nov 7, 2026 |
| openvpn · sles 15.6 | 2.6.10-150600.3.37.1 | SUSE-SU-2026:4213-1 | Sep 16, 2026 |
| openvpn · sles 15.7 | 2.6.10-150600.3.37.1 | SUSE-SU-2026:4213-1 | Sep 16, 2026 |
| openvpn · sles 16.0 | 2.6.10-160000.5.1 | SUSE-SU-2026:24220-1 | Nov 7, 2026 |
| openvpn-dco · sles 15.6 | 2.6.10-150600.3.37.1 | SUSE-SU-2026:4213-1 | Sep 16, 2026 |
| openvpn-dco · sles 15.7 | 2.6.10-150600.3.37.1 | SUSE-SU-2026:4213-1 | Sep 16, 2026 |
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