CVE-2024-40711

CRITICAL9.8

CISA KEV

Published 2024-09-07 · Updated 2026-06-17 · Source support@hackerone.com

Summary

CVE-2024-40711 is a critical-severity (CVSS 9.8) vulnerability in Veeam Backup & Replication. CISA added it to the Known Exploited Vulnerabilities catalog on October 17, 2024, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by November 7, 2024. CISA also lists it as known to be used in ransomware campaigns, so it should be prioritised accordingly. Veeam has 4 vulnerabilities in the KEV catalog, 4 of them linked to ransomware.

All 4 known-exploited Veeam vulnerabilities →

Description

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

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE-502CWE-502

CISA Known-Exploited Vulnerability

Product: Veeam — Backup & Replication

Name: Veeam Backup and Replication Deserialization Vulnerability

Date added: 2024-10-17 · Due: 2024-11-07

USED IN RANSOMWARE

Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

References

View on NVD

More exploited Veeam vulnerabilities

Most recently added to CISA KEV

CVE-2023-27532
RANSOMWARE
Backup & Replication — Veeam Backup & Replication Cloud Connect Missing Authentication for Critical Function Vulnerability
added 2023-08-22
CVE-2022-26500
RANSOMWARE
Backup & Replication — Veeam Backup & Replication Remote Code Execution Vulnerability
added 2022-12-13
CVE-2022-26501
RANSOMWARE
Backup & Replication — Veeam Backup & Replication Remote Code Execution Vulnerability
added 2022-12-13

View all →

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