Vulnerability · Published Mar 22, 2025 · Assigned by mitre
CVE-2025-30472
Critical 9.0
In plain English
A critical-severity stack buffer overflow in Corosync from Corosync. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 41% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)9.0Critical
Exploit odds (30 days)0.5%top 59.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
Corosync through 3.1.9, if encryption is disabled or the attacker knows the encryption key, has a stack-based buffer overflow in orf_token_endian_convert in exec/totemsrp.c via a large UDP packet.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:10 | corosync-vqsim | 3.1.9-1.el10_0.1 | ALSA-2025:7478 |
| AlmaLinux:9 | corosync-vqsim | 3.1.9-2.el9_6 | ALSA-2025:7201 |
| AlmaLinux:10 | corosynclib | 3.1.9-1.el10_0.1 | ALSA-2025:7478 |
| AlmaLinux:9 | corosynclib | 3.1.9-2.el9_6 | ALSA-2025:7201 |
| Debian:12 | corosync | 3.1.7-1+deb12u1 | DEBIAN-CVE-2025-30472 |
| Debian:13 | corosync | 3.1.9-2 | DEBIAN-CVE-2025-30472 |
| Debian:14 | corosync | 3.1.9-2 | DEBIAN-CVE-2025-30472 |
| Rocky Linux:10 | corosync | 0:3.1.9-1.el10_0.1 | RLSA-2025:7478 |
| Rocky Linux:9 | corosync | 0:3.1.9-2.el9_6 | RLSA-2025:7201 |
| Ubuntu:22.04:LTS | corosync | 3.1.6-1ubuntu1.1 | USN-7478-1 |
| Ubuntu:22.04:LTS | corosync | 3.1.6-1ubuntu1.1 | UBUNTU-CVE-2025-30472 |
| Ubuntu:24.04:LTS | corosync | 3.1.7-1ubuntu3.1 | USN-7478-1 |
| Ubuntu:24.04:LTS | corosync | 3.1.7-1ubuntu3.1 | UBUNTU-CVE-2025-30472 |
| Ubuntu:25.10 | corosync | 3.1.8-3ubuntu2 | UBUNTU-CVE-2025-30472 |
Affected products (as reported)
Weakness: CWE-121 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H