high8.1
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 lea…
Impact
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
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Openvpn | Openvpn | from 2.6.0 before 2.6.21 from 2.7 before 2.7.5 |
| Debian | Debian Linux | Version 11.0 |
Weakness classification
References
- NVD record
- CVE.org record
- 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