CVE-2026-77103: Commvault

High severity, CVSS 7.5. EPSS: 0.5% chance of exploitation in the next 30 days.

CommServe contained an authentication bypass issue affecting access authorization and information disclosure. Software customers upgrade to resolved maintenance release. Update CommServe.

Affected products

• Commvault Commvault: from 11.36.0, before 11.36.123 (fixed in 11.36.123); from 11.40.0, before 11.40.72 (fixed in 11.40.72); from 11.44.0, before 11.44.20 (fixed in 11.44.20); from 11.46.0, before 11.46.20 (fixed in 11.46.20)

Published 2026-09-08. Last modified 2026-09-09.