CVE-2026-13117
High
Description
An incomplete guard in OpenVPN 2.6.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote authenticated peers to trigger a use-after-free during TLS session promotion, potentially leading to a denial of service or memory leakage
SeverityHigh
CVSS8.1
Exploit probability—
ProductOpenvpn
PublishedJul 30, 2026
First seenJul 30, 2026
Weakness typeCWE-416Use after free
How to fix
Update
- openvpn openvpn2.6.21, 2.7.5 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| openvpn openvpn | 2.6.0 ≤ v < 2.6.21, 2.7 ≤ v < 2.7.5 | 2.6.21, 2.7.5 |
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