CVE-2026-21667 Details
Description
A vulnerability allowing an authenticated domain user to perform remote code execution (RCE) on the Backup Server.
A remote code execution vulnerability has been identified in Veeam Backup & Replication versions 12, 12.1, 12.2, 12.3, and 12.3.1. This vulnerability allows an authenticated domain user to execute arbitrary code on the Backup Server.
Users can upgrade to Veeam Backup & Replication version 12.3.2.4465 to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Mar 12, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://www.veeam.com/kb4830 | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-284 | Improper Access Control | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| veeam veeam backup & replication | >= 12.0.0.1402, < 12.3.2.4465 |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Mar 31, 2026 | Initial Analysis | [email protected] |
| Mar 12, 2026 | CVE Modified | CISA-ADP |
| Mar 12, 2026 | New CVE Received | [email protected] |