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CVE-2026-21666NVD

Vulnerability Summary

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

Severity Level

CRITICAL(9.9)

Published Date

Mar 12, 2026

Last Modified

Mar 31, 2026

Exploitation Status

No confirmed exploitation yet

EPSS Score (30-Day)

0.35%Probability

Root Weakness (CWE)

CWE-284: Unknown/Unlisted Weakness ↗

Refer to the official MITRE database for detailed architectural specifications regarding this weakness.

CVSS v3.1 Base Metrics

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeChanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

External References

https://www.veeam.com/kb4830

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Critical Alert 1 Active Exploit Detected Today

CVE-2026-21666NVD

Vulnerability Summary

External References