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High severity8.8NVD Advisory· Published Jan 13, 2022· Updated Jun 17, 2026

CVE-2021-34997

CVE-2021-34997

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.

AI Insight

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Affected products

3
  • Commvault/CommCellllm-fuzzy3 versions
    11.22.22+ 2 more
    • (no CPE)range: 11.22.22
    • (no CPE)range: 11.22.22
    • cpe:2.3:a:commvault:commcell:11.22.22:*:*:*:*:*:*:*

Patches

Vulnerability mechanics

References

1

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