Critical 9.8Known exploited (CISA KEV)Published Sep 7, 2024

CVE-2024-40711A deserialization of untrusted data vulnerability with a malicious payload can allow an unauthenticated remote code execution (RCE).

Updated under an hour ago (2026-10-19 09:50 UTC)

Does this affect you?

It affects Veeam Backup and Recovery and 2 other products. Add what you run to find out whether that includes you.

CISA lists it as known exploited since Oct 17, 2024; federal agencies had to remediate by Nov 7, 2024, and it is known to be used in ransomware. Treat that date as your deadline.

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Exploited in the last 30 days

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

CVSS: 9.8 CRITICAL (v3.0, CNA)CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-502
Known exploited: Added to CISA KEV Oct 17, 2024; federal remediation due Nov 7, 2024; known ransomware useApply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
EPSS (exploitation in the next 30 days): 90.37% (percentile 100)
Assigned by: hackerone
NVD analysis: Analyzed
Record last updated: Oct 21, 2025
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Veeam Backup and Recovery veeam:backup_and_recovery (from the name)	from 12.1.2 through 12.1.2	CNA record
veeam backup_\&_replication veeam:backup_&_replication	through 12.2.0.334	CISA ADP
veeam veeam_backup_&_replication veeam:veeam_backup_&_replication	from 12.0.0.1420 before 12.2.0.334	NVD

References

https://www.veeam.com/kb4649vendor-advisory
https://labs.watchtowr.com/veeam-backup-response-rce-with-auth-but-mostly-without-auth-cve-2024-40711-2/exploit, third-party-advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-40711us-government-resource

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.