CVE-2020-15074

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-07-14 · updated 2026-06-17
Weakness: CWE-302

Description

OpenVPN Access Server older than version 2.8.4 and version 2.9.5 generates new user authentication tokens instead of reusing exiting tokens on reconnect making it possible to circumvent the initial token expiry timestamp.

Affected products

OpenVPN Access Server: before 2.8.4; from 2.9.0 before 2.9.6 — fixed in 2.8.4, 2.9.6

How to fix

Upgrade to a fixed version: OpenVPN Access Server 2.8.4, 2.9.6. Check the vendor advisory for mitigations.

References

https://openvpn.net/vpn-server-resources/release-notes/
https://openvpn.net/vpn-server-resources/release-notes/

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