What’s Vulnerable › Vulnerabilities

CVE-2024-5594

• Severity: critical (CVSS 9.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-01-06 · updated 2026-06-17
• Weakness: CWE-1287

Description

OpenVPN before 2.6.11 does not santize PUSH_REPLY messages properly which an attacker controlling the server can use to inject unexpected arbitrary data ending up in client logs.

Affected products

• OpenVPN: from 2.6.0 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-2024-5594
• https://www.mail-archive.com/openvpn-users@lists.sourceforge.net/msg07634.html
• https://lists.debian.org/debian-lts-announce/2025/03/msg00005.html

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