What is CVE-2021-34996?

CVE-2021-34996 is a high-severity vulnerability in Commvault Commcell, classified under CWE-749. CVSS score: 8.8/10. Published 2022-01-13.

How severe is CVE-2021-34996?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Commvault Commcell

CVE-2021-34996

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 Demo_ExecuteProcessOnGroup workflow. By creating a workflow, an attacker can specify an arbitrary command to be executed. An attacker can leverage this vulnerability to execute code in the context of SYSTEM. Was ZDI-CAN-13889.

EPSS: 0.823 (99.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Commvault Commcell — versions 11.22.22

Weakness classification (CWE)

CWE-749

References

zdi-disclosures@trendmicro.com (VDB Entry, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-34996?: CVE-2021-34996 is a high-severity vulnerability in Commvault Commcell, classified under CWE-749. CVSS score: 8.8/10. Published 2022-01-13.
How severe is CVE-2021-34996?: High severity. CVSS v3 base score is 8.8 out of 10.