CVE-2026-21671

9.1 criticalEPSS 1.4%

Critical (9.1) in veeam veeam backup \& replication. EPSS 1.4% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

9.1 critical

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

EPSS: 1.4% chance of exploitation in the next 30 days; higher than 72% of CVEs (scores of 2026-10-31)
CWEs: CWE-94, CWE-693
Published: 2026-03-12
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

veeam:veeam_backup_\&_replication

References

https://www.veeam.com/kb4831

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