CVE-2026-21668highCWE-693

CVE-2026-21668: high-severity vulnerability in Veeam Backup and Replication

Published · Updated

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 8.8epss 0.5%
exploitation probability
0.5%top 58% of all CVEs
observed exploitation
nono source reports it
A vulnerability allowing an authenticated domain user to bypass restrictions and manipulate arbitrary files on a Backup Repository.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
Veeam · Backup and Replication
Related CVEs — Veeam Backup and Replication

In the same product, most dangerous first.

CVE-2026-21669CRITICALCVE-2026-21669EPSS 1.2%CVE-2026-21666CRITICALCVE-2026-21666EPSS 1.1%CVE-2026-21667CRITICALCVE-2026-21667EPSS 1.1%CVE-2026-21708CRITICALCVE-2026-21708EPSS 1.1%CVE-2025-48984HIGHCVE-2025-48984EPSS 1.0%CVE-2025-48983CRITICALCVE-2025-48983EPSS 0.8%
References
https://www.veeam.com/kb4830