Deserialization of Untrusted Data in Commvault - CVE-2026-77092
Published: September 8, 2026
Vulnerability identifier: #VU147402
CSH Severity: Low
CVSS v4: 7.3 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-77092
CWE-ID: CWE-502
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to escalate privileges.
The vulnerability exists due to deserialization of untrusted data in Content Extractor when processing untrusted serialized data. A local user can supply malicious serialized data to escalate privileges.
Affected software
Commvault
How to mitigate CVE-2026-77092
Install security update from vendor's website.
Commvault - addressed in versions 11.36.123, 11.40.72, 11.44.20, 11.46.20