Commvault Cloud vulnerability

CommServe contained a cryptographic signature verification issue affecting privilege management. Software customers upgrade to resolved maintenance release. Update CommServe and Web Server.

Published 8 Sep 2026Updated 9 Sep 20261 sources
CVSS 8.7

What happened

CommServe contained a cryptographic signature verification issue affecting privilege management. Software customers upgrade to resolved maintenance release. Update CommServe and Web Server.

Affected versions

Commvault Cloud: 11.46.0 through 11.46.19 (custom); 11.44.0 through 11.44.19 (custom); 11.40.0 through 11.40.71 (custom); 11.36.0 through 11.36.122 (custom) Fixed: See vendor advisory.

Why it matters

Review the vendor advisory and exposure of the affected product to determine operational impact.

Detection & mitigation

  • Apply vendor-provided updates or mitigations.
  • Review affected product exposure and access logs.

Public PoC references

No public PoC reference has passed the current publication threshold.