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Vulnerability record · CVE-2020-15074 · published 14 July 2020

CVE-2020-15074: Openvpn access server insufficient session expiration vulnerability

Openvpn · Openvpn Access Server

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.

7.5 CVSS 3.1 High EPSS 1.0% · top 37.3% CWE-302 · CWE-302CWE-613 · Insufficient session expiration
7.5CVSS 3.1 base score, v2 5.0
1.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://openvpn.net/vpn-server-resources/release-notes/ Release NotesVendor Advisory
https://openvpn.net/vpn-server-resources/release-notes/ Release NotesVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2020-15074), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.