CVE-2024-13975: Commvault 11.20.0 - 11.36.0 Windows Access Nodes Compromise via Local File Server Agent Abuse

Severity: high (CVSS 8.5 v4.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-07-25 · updated 2026-06-17
Weakness: CWE-269

Description

A local privilege escalation vulnerability exists in Commvault for Windows versions 11.20.0, 11.28.0, 11.32.0, 11.34.0, and 11.36.0. In affected configurations, a local attacker who owns a client system with the file server agent installed can compromise any assigned Windows access nodes. This may allow unauthorized access or lateral movement within the backup infrastructure. The issue has been resolved in versions 11.32.60, 11.34.34, and 11.36.8.

Affected products

Commvault Cloud: from 11.20.0 before 11.32.60; from 11.28.0 before 11.32.60; from 11.32.0 before 11.32.60; from 11.34.0 before 11.34.34; from 11.36.0 before 11.36.8 — fixed in 11.32.60, 11.34.34, 11.36.8

How to fix

Upgrade to a fixed version: Commvault Cloud 11.32.60, 11.34.34, 11.36.8. Check the vendor advisory for mitigations.

References

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