CVE-2026-21672 — HIGH (8.8)

Vulnerability Description

A vulnerability allowing local privilege escalation on Windows-based Veeam Backup & Replication servers.

CVSS Score

8.8

HIGH

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

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Related Weaknesses (CWE)

CWE-538

References

https://www.veeam.com/kb4830
https://www.veeam.com/kb4831

FAQ

What is CVE-2026-21672?

CVE-2026-21672 is a vulnerability with a CVSS score of 8.8 (HIGH). A vulnerability allowing local privilege escalation on Windows-based Veeam Backup & Replication servers.

How severe is CVE-2026-21672?

CVE-2026-21672 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-21672?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.