CVE-2026-21708

critical

Description

A vulnerability allowing a Backup Viewer to perform remote code execution (RCE) as the postgres user.

References

References
More

https://thehackernews.com/2026/03/veeam-patches-7-critical-backup.html

https://www.bleepingcomputer.com/news/security/veeam-warns-of-critical-flaws-exposing-backup-servers-to-rce-attacks/

https://www.veeam.com/kb4831

https://www.veeam.com/kb4830

Details

Source: Mitre, NVD

Published: 2026-03-12

Updated: 2026-03-12

Risk Information

CVSS v2

Base Score: 9

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 9.9

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.00539