Vulnerability Intelligence Report
CVE-2026-21667
A vulnerability allowing an authenticated domain user to perform remote code execution (RCE) on the Backup Server.
No Active Exploit Signals
CVSS Base Score
10.0
CRITICAL
Exploitability:3.2
Impact Score:6.1
EPSS Probability:1.13%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-284 ↗CWE-284 Improper Access Control
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Veeam | Backup and Replication | 12.3.2 < 12.3.2 (unaffected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
1.128%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | HackerOne · Bug Bounty Provider · USA |
| Reserved | 2026-01-02T15:00:02 |
| Published | 2026-03-12T15:09:39 |
| Last Updated | 2026-03-13T03:55:44 |
Community Chatter & Buzz