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CVE-2026-21666
CRITICAL9.9
Description
A vulnerability allowing an authenticated domain user to perform remote code execution (RCE) on the Backup Server.
CVE Details
CVSS v3.1 Score9.9
SeverityCRITICAL
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack VectorNETWORK
ComplexityLOW
Privileges RequiredLOW
User InteractionNONE
Published3/12/2026
Last Modified3/31/2026
Sourcenvd
Honeypot Sightings0
Affected Products
veeam:veeam_backup_\&_replication
Weaknesses (CWE)
CWE-284
References
https://www.veeam.com/kb4830(support@hackerone.com)
IOC Correlations
No correlations recorded
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