Critical SEVERITY — Vulnerability

CVE-2026-21667 — A vulnerability allowing an authenticated domain user to perform remote code execution (RCE) on the Backup Server.

A vulnerability allowing an authenticated domain user to perform remote code execution (RCE) on the Backup Server.

Platform
Veeam Backup & Replication
CVE Record
CVE-2026-21667
CVSS Score
9.9/10
Published
12 March 2026
Views
3
Primary source: Review the official advisory at nvd.nist.gov Kaynağa Git

Summary

A vulnerability allowing an authenticated domain user to perform remote code execution (RCE) on the Backup Server.

Assessment

  • CVE: CVE-2026-21667
  • CVSS base score: 9.9
  • Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
  • Source: NVD entry

References

Actions

  • Verify affected systems in inventory
  • Apply the vendor patch during a maintenance window
  • Restrict access at the network layer until the patch is applied
veeam backup \& replication *

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