CVE-2024-40711 — Veeam Backup and Replication Deserialization Vulnerability

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

01What is this vulnerability?

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

02Affected products

Vendor	Product	Versions
Veeam	Backup and Recovery	12.1.2

03Active exploitation status

Yes — actively exploited. Added to the CISA KEV catalog on 2024-10-17. Ransomware use: Known.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

Open in Sigma generator →

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2024-09-07T16:11:22.213Z
• Last modified: 2025-10-21T22:55:45.810Z
• Added to CISA KEV: 2024-10-17
• BOD 22-01 due: 2024-11-07

09References

• www.veeam.com — https://www.veeam.com/kb4649