CVE-2026-84732

A flaw was found in OpenVPN. Remote unauthenticated attackers can cause a denial of service by sending specially crafted network inputs. These inputs trigger a timeout integer overflow during the retransmission of acknowledgment ACK packet IDs, which can make the OpenVPN service unavailable...

CVE-2026-84732

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...

ALPINE-CVE-2026-84732

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...

CVE-2026-84732

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...

EUVD-2026-72302

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...

CVE-2026-84732

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...

CVE-2026-84732

OpenVPN 2.x (through 2.6.22 and 2.7.6 ) is vulnerable to a denial of service in the control channel reliability layer, caused by a timeout integer overflow triggered by crafted ACK packet ID retransmissions. Attackers can either drive the reliable TLS retransmission timeout to grow without bound ...