VulnerabilityAnalyzed

CVE-2024-40711

Veeam Backup and Replication Deserialization Vulnerability

KEVCRITICAL 9.8EPSS 90.4%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 7 November 2024). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

Description

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

CVSS 3.1: 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: 90.37% probability · 100th percentile
CISA KEV: Listed 17 October 2024 · due 7 November 2024 · used in ransomware campaigns
Weakness: CWE-502
Affected: veeam/veeam backup \& replication
Source: support@hackerone.com

CISA notes

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. https://www.veeam.com/kb4649 ; https://nvd.nist.gov/vuln/detail/CVE-2024-40711

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

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.