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CVE-2026-21666

Severity

CRITICAL

CVSS

10.0

EPSS

0.01128

Risk score

40.39

CISA KEV

No

PoC

No

Published

2026-03-12

Modified

2026-03-13

First seen

2026-08-07

Aliases

EUVD-2026-11574, GHSA-GHCX-4Q37-GCRF

Products

Veeam:Backup and Replication 12.3.2 <12.3.2

Sources

euvd EUVD-2026-11574

Description

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

References