Exploited vulnerability · CISA KEV

Is CVE-2024-40711 exploited? Yes: in CISA KEV since 17 Oct 2024

Gociux · Veeam Backup & Replication · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2024-40711, Veeam Backup and Replication Deserialization Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 17 Oct 2024, 40 days after it was published. It is known to be used in ransomware campaigns. It affects Veeam Backup & Replication. If you run it, CISA's required action is: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

What it is

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

What to do

1. Check whether you run it. Look for Backup & Replication in your asset inventory, including appliances and cloud images. Stack check lists every exploited Veeam CVE at once.
2. Apply the fix. Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
3. If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 7 Sep 2024.
4. Get told next time. Email alerts when CISA adds a CVE for Veeam.

Other exploited CVEs in Backup & Replication

• CVE-2023-27532: Veeam Backup & Replication Cloud Connect Missing Authentication for Critical Function Vulnerability (22 Aug 2023)
• CVE-2022-26500: Veeam Backup & Replication Remote Code Execution Vulnerability (13 Dec 2022)
• CVE-2022-26501: Veeam Backup & Replication Remote Code Execution Vulnerability (13 Dec 2022)

References

• www.veeam.com/kb4649
• nvd.nist.gov/vuln/detail/CVE-2024-40711

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in October 2024 · Veeam scorecard · act-now radar.