Vulnerability · Published Jan 6, 2025 · Assigned by OpenVPN
CVE-2024-5594
Critical 9.1
In plain English
A critical-severity security flaw in OpenVPN from OpenVPN. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 57% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)9.1Critical
Exploit odds (30 days)0.8%top 42.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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 packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | openvpn | 2.6.11-r0 | ALPINE-CVE-2024-5594 |
| Alpine:v3.21 | openvpn | 2.6.11-r0 | ALPINE-CVE-2024-5594 |
| Alpine:v3.22 | openvpn | 2.6.11-r0 | ALPINE-CVE-2024-5594 |
| Alpine:v3.23 | openvpn | 2.6.11-r0 | ALPINE-CVE-2024-5594 |
| Alpine:v3.24 | openvpn | 2.6.11-r0 | ALPINE-CVE-2024-5594 |
| Debian:12 | openvpn | 2.6.3-1+deb12u3 | DEBIAN-CVE-2024-5594 |
| Debian:13 | openvpn | 2.6.11-1 | DEBIAN-CVE-2024-5594 |
| Debian:14 | openvpn | 2.6.11-1 | DEBIAN-CVE-2024-5594 |
| Ubuntu:22.04:LTS | openvpn | 2.5.9-0ubuntu0.22.04.3 | USN-6860-1 |
| Ubuntu:22.04:LTS | openvpn | 2.5.9-0ubuntu0.22.04.3 | UBUNTU-CVE-2024-5594 |
| Ubuntu:24.04:LTS | openvpn | 2.6.9-1ubuntu4.1 | UBUNTU-CVE-2024-5594 |
| Ubuntu:24.04:LTS | openvpn | 2.6.9-1ubuntu4.1 | USN-6860-1 |
Affected products (as reported)
Weakness: CWE-1287 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N