What is CVE-2025-30472?

CVE-2025-30472 is a critical-severity vulnerability in Corosync, classified under Stack-based Buffer Overflow. CVSS score: 9.0/10. Published 2025-03-22.

How severe is CVE-2025-30472?

Critical severity. CVSS v3 base score is 9.0 out of 10.

Is CVE-2025-30472 known to be exploited?

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

Buffer overflow in Corosync

CVE-2025-30472

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.

Vulnerability class: Buffer Overflow

EPSS: 0.004 (35.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.0 (Critical). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H.

Affected products

Corosync — versions 0

Weakness classification (CWE)

Public proof-of-concept exploits

w4zu/Debian_

References

Frequently asked questions

What is CVE-2025-30472?: CVE-2025-30472 is a critical-severity vulnerability in Corosync, classified under Stack-based Buffer Overflow. CVSS score: 9.0/10. Published 2025-03-22.
How severe is CVE-2025-30472?: Critical severity. CVSS v3 base score is 9.0 out of 10.
Is CVE-2025-30472 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.