CVE-2026-12996

Publication date 3 July 2026

Last updated 16 July 2026

Ubuntu priority

Description

ack_write_buf use after free

Show unmaintained releases

Package	Ubuntu Release	Status
openvpn	26.04 LTS resolute	Fixed 2.7.0-1ubuntu1.2
	25.10 questing	Ignored end of life, was needs-triage
	24.04 LTS noble	Fixed 2.6.19-0ubuntu0.24.04.3
	22.04 LTS jammy	Fixed 2.5.11-0ubuntu0.22.04.4
	20.04 LTS focal	Needs evaluation
	18.04 LTS bionic	Needs evaluation
	16.04 LTS xenial	Needs evaluation
	14.04 LTS trusty	Needs evaluation