Critical (9.8) in Veeam Backup & Replication. In CISA KEV since 2024-10-17, with known ransomware use. EPSS 90% chance of exploitation in the next 30 days.
A deserialization of untrusted data vulnerability with a malicious payload can allow an unauthenticated remote code execution (RCE).
Severity
CVSS 3.1
9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
90% chance of exploitation in the next 30 days; higher than 99% of CVEs (scores of 2026-10-31)
CISA KEV
listed 2024-10-17, due 2024-11-07, known ransomware use