Missing Authentication for Critical Function in Commvault - CVE-2026-77097
Published: September 8, 2026
Vulnerability identifier: #VU147404
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-77097
CWE-ID: CWE-306
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to missing authentication in Private Metrics Server metrics upload functionality when handling metrics uploads. A remote attacker can submit metrics uploads without authentication to cause a denial of service.
Affected software
Commvault
How to mitigate CVE-2026-77097
Install security update from vendor's website.
Commvault - addressed in versions 11.36.123, 11.40.72, 11.44.20, 11.46.20