VULNERABILITY INTELLIGENCE

CVE-2021-34997

CVSS score8.8 HIGH
EPSS probability4.25%
CISA KEVNot currently listed
Published2022-01-13
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Commvault CommCell 11.22.22. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the AppStudioUploadHandler class. The issue results from the lack of proper validation of user-supplied data, which can allow the upload of arbitrary files. An attacker can leverage this vulnerability to execute code in the context of NETWORK SERVICE. Was ZDI-CAN-13894.

Weakness classification

  • CWE-434: Unrestricted Upload of File with Dangerous Type

Primary references