CVE-2021-34993

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 5.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-01-13 · updated 2026-06-17
Weakness: CWE-287

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.

Affected products

Commvault CommCell: 11.22.22

References

https://www.zerodayinitiative.com/advisories/ZDI-21-1328/
https://www.zerodayinitiative.com/advisories/ZDI-21-1328/

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