CVE-2026-21671

CVSS 9.1 CRITICALEPSS 1.3%CWE-693

Vexday Risk Score

28Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 9.1EPSS 1.3%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

12 Mar 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

A vulnerability allowing an authenticated user with the Backup Administrator role to perform remote code execution (RCE) in high availability (HA) deployments of Veeam Backup & Replication.

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

Affected products

Veeam · Software Appliance

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References

https://www.veeam.com/kb4831