Actively exploited in the wild
Veeam Backup and Replication Deserialization Vulnerability
Veeam - Backup & Replication · Listed in the CISA KEV since 2024-10-17. This indicates confirmed attacks in production environments.
Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
CVE-2024-40711
CriticalCVSS 9.8KEVSummary
A deserialization of untrusted data vulnerability with a malicious payload can allow an unauthenticated remote code execution (RCE).
Risk Assessment
It enables an unauthenticated attacker to execute arbitrary code remotely, potentially leading to full system compromise and data confidentiality breaches.
Recommendation
Immediately apply the available security patches and consider restricting network access to the vulnerable component.
Other vulnerabilities in Veeam Backup & Replication
See all- CVE-2026-21672High
A vulnerability allowing local privilege escalation on Windows-based Veeam Backup & Replication servers.
- CVE-2025-64393Critical
This vulnerability in Veeam Backup & Replication allows a Backup Viewer to execute arbitrary code as SYSTEM on the backup server.
- CVE-2026-21671Critical
The vulnerability allows an authenticated user with the Backup Administrator role to perform remote code execution (RCE) in high availability (HA) deployments of Veeam Backup & Replication.
- CVE-2025-48983Critical
A vulnerability in the Mount service of Veeam Backup & Replication allows for remote code execution (RCE) on the Backup infrastructure hosts by an authenticated domain user.
- CVE-2023-27532HighActively exploited
Vulnerability in Veeam Backup & Replication component allows encrypted credentials stored in the configuration database to be obtained. This may lead to gaining access to the backup infrastructure hosts.
- CVE-2022-26501CriticalActively exploited
Veeam Backup & Replication 10.x and 11.x has Incorrect Access Control (issue 1 of 2).
- CVE-2022-26500HighActively exploited
Improper limitation of path names in Veeam Backup & Replication 9.5U3, 9.5U4, 10.x, and 11.x. A remote authenticated user can access internal API functions and upload and execute arbitrary code.
- CVE-2026-108141Medium
An authenticated user with the Restore Operator role who also controls the contents of a backed-up NAS share can write attacker-controlled files to an arbitrary path on the backup server through relative path traversal.
- CVE-2026-108140Medium
An authenticated user with the Restore Operator role who also controls the contents of a backed-up NAS share can write attacker-controlled files to an arbitrary path on the backup server through relative path traversal.
- CVE-2026-93026Medium
This vulnerability in Veeam Backup & Replication allows a Backup Viewer to modify the Enterprise Manager master key and stored antivirus update credentials.
Original NVD description (English source)
A deserialization of untrusted data vulnerability with a malicious payload can allow an unauthenticated remote code execution (RCE).
Vulnerability data from NVD (NIST) · CISA KEV · EPSS