CVE-2026-84732

State: Published
Severity: 8.7 High
Published: Sep 7, 2026
Updated: Sep 8, 2026
Reserved: Sep 2, 2026

Description

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

Scores

CVSS	Score	Vector	Source
4.0	8.7 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L	OpenVPN

Weaknesses

CWE-190 Integer overflow or wraparound

Affected Products

Product	Versions
OpenVPNOpenVPN	2.6.22 and earlierAffected 2.7.6 and earlierAffected

References

https://community.openvpn.net/Security%20Announcements/CVE-2026-84732vendor-advisory

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.