CVE-2024-4877

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-04-03 · updated 2026-06-17
Weakness: CWE-268

Description

OpenVPN version 2.4.0 through 2.6.10 on Windows allows an external, lesser privileged process to create a named pipe which the OpenVPN GUI component would connect to allowing it to escalate its privileges

Affected products

OpenVPN: from 2.4.0 before 2.6.11 — fixed in 2.6.11

How to fix

Upgrade to a fixed version: OpenVPN 2.6.11. Check the vendor advisory for mitigations.

References

https://community.openvpn.net/openvpn/wiki/CVE-2024-4877
https://www.mail-archive.com/openvpn-users@lists.sourceforge.net/msg07634.html

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