CVE-2024-40711
Veeam Backup and Replication Deserialization Vulnerability
Veeam Backup & Replication
CVSS
9.8CriticalExploit odds (EPSS)90.4%Chance of exploitation activity in the next 30 days, higher than 99% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version yet
CISA required actionApply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. CISA KEV
What fixes it
No source in this snapshot names a fixed version.
Timeline
- 7 Sep 2024, 16:11 UTCPublishedCVE List
- 17 Oct 2024Added to CISA KEVCISA KEV
- 20 Oct 2026, 12:00 UTCFirst reported exploitedCISA advisories
Vendor and government advisories 1
Vendors that say their products are affected, and agencies that issued alerts. Check each for the fixed release of the product you run.
Public exploit code and templates 1
- Scanner templateVeeam Backup & Replication - UnauthenticatedNuclei
Listed so defenders can prioritize. Threatline links to the source and does not host exploit code.
Reports 1
One outlet reports exploitation. Reports are not confirmation; each links to its source.
Description
Veeam Backup and Replication contains a deserialization vulnerability allowing an unauthenticated user to perform remote code execution.
Text from CVE List
Affected versions 1
- Backup and Recoveryaffected: 12.1.2 through 12.1.2CVE List
References 4
- veeam.com/kb4649Referencevia CVE List
- nvd.nist.gov/vuln/detail/CVE-2024-40711Referencevia CISA KEV
- labs.watchtowr.com/veeam-backup-response-rce-with-auth-but-mostly-without-auth-cve-2024-40711-2/Referencevia CVE List
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-40711Referencevia CVE List