CVE-2026-12996

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

Score

CVSS 3.1 8.1 High

Status

Analyzed - security@openvpn.net

Published

2026-07-30

Last modified

2026-07-30

Weaknesses

CWE-125, CWE-416

Affected products

• Debian Linux (Debian)
• Openvpn (Openvpn)

References

• https://community.openvpn.net/ReleaseHistory#openvpn-2621-released-1-july-2026
• https://community.openvpn.net/ReleaseHistory#openvpn-275-released-1-july-2026
• https://community.openvpn.net/Security%20Announcements/CVE-2026-12996
• https://lists.debian.org/debian-lts-announce/2026/07/msg00013.html