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[ CVE-2024-40711 · Published 7 Sep 2024 ]

Veeam Backup and Replication Deserialization Vulnerability

Exploited · CISA KEV CVSS 9.8 EPSS 90%No fix listed yet

[ Why it matters ]Priority signals

  • Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2024-10-17
  • Known to be used in ransomware campaigns
  • EPSS: 90% chance of exploitation in the next 30 days (higher than 100% of CVEs)
  • Critical severity: CVSS 9.8

[ Description ]Official description

A deserialization of untrusted data vulnerability with a malicious payload can allow an unauthenticated remote code execution (RCE).

CISA: Veeam Backup and Replication contains a deserialization vulnerability allowing an unauthenticated user to perform remote code execution.

[ Fixes ]Fixes and patches

CISA required action (US federal deadline 7 Nov 2024): Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References