CVE-2026-13122
5.3
MEDIUM
CVSS 3.1
EPSS 0.49%
Description
OpenVPN version 2.6.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote attackers to cause a denial of service via a malformed authentication token that triggers a reachable assertion when external-auth is enabled
How to fix CVE-2026-13122
To remediate CVE-2026-13122, upgrade the affected package to a fixed version below.
- Alpine/openvpn—upgrade to 2.7.5-r0 or later
Is CVE-2026-13122 being exploited?
Low — EPSS is 0.5%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- >= 2.6.0, < 2.7.5-r0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H |