Ubuntu 20.04 — corosync — vulnerability — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 7 December 2025 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read • Source: Ubuntu Security Notice USN-7478-1 Related CVEs: CVE-2025-30472 Upstream summary: It was discovered that Corosync incorrectly handled certain large UDP packets. If encryption is disabled, or an attacker knows the encryption key, this issue […]