What is CVE-2024-5594?

CVE-2024-5594 is a critical-severity vulnerability in Openvpn, classified under CWE-1287. CVSS score: 9.1/10. Published 2025-01-06.

How severe is CVE-2024-5594?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Is CVE-2024-5594 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Openvpn

CVE-2024-5594

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.

Published 2025-01-06 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.008 (56.0th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 56.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Openvpn — versions 0

Weakness classification (CWE)

CWE-1287

Public proof-of-concept exploits

References

community.openvpn.net/openvpn/wiki/CVE-2024-5594 (Vendor Advisory)
www.mail-archive.com/openvpn-users@lists.sourceforge.net/msg07634.html (Release Notes)
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2024-5594?: CVE-2024-5594 is a critical-severity vulnerability in Openvpn, classified under CWE-1287. CVSS score: 9.1/10. Published 2025-01-06.
How severe is CVE-2024-5594?: Critical severity. CVSS v3 base score is 9.1 out of 10.
Is CVE-2024-5594 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.