CVE-2024-42455: Veeam Backup & Replication

High severity, CVSS 8.1. EPSS: 15.2% chance of exploitation in the next 30 days.

A vulnerability in Veeam Backup & Replication allows a low-privileged user to connect to remoting services and exploit insecure deserialization by sending a serialized temporary file collection. This exploit allows the attacker to delete any file on the system with service account privileges. The vulnerability is caused by an insufficient blacklist during the deserialization process.

Affected products

• Veeam Veeam Backup & Replication: from 12.0.0.1402, before 12.3.0.310 (fixed in 12.3.0.310)

Published 2024-12-04. Last modified 2026-06-17.