VULNERABILITY INTELLIGENCE

CVE-2021-34993

CVSS score9.8 CRITICAL

EPSS probability5.42%

CISA KEVNot currently listed

Published2022-01-13

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

This vulnerability allows remote attackers to bypass authentication on affected installations of Commvault CommCell 11.22.22. Authentication is not required to exploit this vulnerability. The specific flaw exists within the CVSearchService service. The issue results from the lack of proper validation prior to authentication. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-13706.

Weakness classification

CWE-287: Improper Authentication

Primary references

zdi-disclosures@trendmicro.com — Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory, VDB Entry