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CVE-2026-12996
Component Overview
Vulnerability Overview
Name
CVE-2026-12996
Source
NVD (
link
)
Debian (
link
)
Description
A use-after-free in OpenVPN 2.6.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote authenticated peers to potentially cause a denial of service or leak memory via crafted packets during TLS session promotion or expiry
CWEs
CWE-125
Published Date
Jul 30, 2026
Updated Date
Aug 5, 2026
Workaround
-
Advisories
https://community.openvpn.net/ReleaseHistory#openvpn-2621-released-1-july-2026
Release Notes
https://community.openvpn.net/ReleaseHistory#openvpn-275-released-1-july-2026
Release Notes
https://community.openvpn.net/Security%20Announcements/CVE-2026-12996
Vendor Advisory
https://lists.debian.org/debian-lts-announce/2026/07/msg00013.html
Mailing List
Analysis
#
Affected Component
Analysis
openvpn
Exploitable
Vulnerability Ratings
#
6
CVSSv4
8.1
CVSSv31
NaN
other
Others affected components
#
Name
Project
Project Version
Version
Status
openvpn
buildroot
2025.02.x
2.6.22
Not Affected
openvpn
buildroot
master
2.7.6
Not Affected
openvpn
openwrt
master
2.7.6-r1
Not Affected
openvpn
openwrt
openwrt-25.12
2.7.6-r1
Not Affected
openvpn
yocto
kirkstone
2.5.11
Not Affected
openvpn
yocto
master
2.7.6
Not Affected