Bug 2529346

Summary:	CVE-2026-84732 openvpn: OpenVPN: Remote Denial of Service via crafted ACK packets [epel-all]
Product:	[Fedora] Fedora EPEL	Reporter:	Srikanth Balasubramanian <sbalasub>
Component:	openvpn	Assignee:	Frank Lichtenheld <frank>
Status:	CLOSED ERRATA	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	high	Docs Contact:
Priority:	high
Version:	epel10	CC:	dazo, frank, huzaifas, kalevlember, steve
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["218be766-bb1b-4b05-8d58-dcf9f0d291d3"]}
Fixed In Version:		Doc Type:	---
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2026-09-07 13:26:53 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	2529320

Description Srikanth Balasubramanian 2026-09-07 10:50:01 UTC

Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

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

Comment 1 Frank Lichtenheld 2026-09-07 13:26:53 UTC

Published 2.7.7 to EPEL10