CVE-2026-13379

Publication date 30 July 2026

Last updated 7 August 2026

Ubuntu priority

Cvss 3 Severity Score

Description

The Windows interactive service in OpenVPN 2.7_alpha1 through 2.7.4 allows remote attackers to cause persistent DNS state pollution or a service crash via a crafted search domain during the disconnection process

Status

Show unmaintained releases

Package	Ubuntu Release	Status
openvpn	26.04 LTS resolute	Needs evaluation
	24.04 LTS noble	Needs evaluation
	22.04 LTS jammy	Needs evaluation
	20.04 LTS focal	Needs evaluation
	18.04 LTS bionic	Needs evaluation
	16.04 LTS xenial	Needs evaluation
	14.04 LTS trusty	Needs evaluation

Severity score breakdown

CVSS version:

Base score 5.1 · Medium

Base metrics

Parameter	Value
Attack vector	Network
Attack complexity	Low
Attack requirements	Present
Privileges required	Low
User interaction	Passive
Vulnerable system - Confidentiality impact	Low
Vulnerable system - Integrity impact	None
Vulnerable system - Availability impact	Low
Subsequent system - Confidentiality impact	High
Subsequent system - Integrity impact	None
Subsequent system - Availability impact	High

Scores

Parameter	Value
Base score	5.1 · Medium
Base + Threat score	-
Base + Environmental score	-
Base + Threat + Environmental score	-

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:L/VI:N/VA:L/SC:H/SI:N/SA:H

Base score 9.1 · Critical