{"id":"CVE-2021-34996","published":"2022-01-13T21:44:49Z","modified":"2024-08-04T00:26:55Z","title":"This vulnerability allows remote attackers to execute arbitrary code on affected installations of Commvault CommCell…","vendor":"Commvault","product":"CommCell","tier":"core","eol":null,"affectedVersions":[{"vendor":"Commvault","product":"CommCell","versions":["11.22.22"]}],"description":{"text":"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.","provenance":"source","from":"CVE.org"},"summary":{"text":"The Commvault CommCell 11.22.22 product contains a flaw in the Demo_ExecuteProcessOnGroup workflow that allows execution of arbitrary commands, and the existing authentication mechanism can be bypassed. A remote attacker with network access, who can create a workflow, can specify an arbitrary command to run in the context of SYSTEM, though the attack requires that the attacker has some form of low-privilege access to the system.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-29T07:15:23Z"},"cvss":{"score":8.8,"severity":"HIGH","version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","provenance":"source","from":"CVE.org CNA"},"epss":{"score":0.82258,"percentile":0.99657,"date":"2026-10-29","provenance":"source"},"kev":null,"vulncheckKev":null,"exploited":false,"otx":{"pulseCount":0,"pulses":[],"provenance":"machine"},"cwes":[{"id":"CWE-749","name":"Exposed Dangerous Method or Function"}],"references":[{"url":"https://www.zerodayinitiative.com/advisories/ZDI-21-1331/","tags":["x_refsource_MISC"]}],"techniques":[],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2021-21643","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2021-21643","exploited":false,"exploitedSince":null,"provenance":"source"},"exploits":[],"exploitSources":null,"exploitRefs":[],"flow":[],"timeline":[{"date":"2022-01-13","kind":"published","label":"Published (CVE.org)","url":"https://www.cve.org/CVERecord?id=CVE-2021-34996","provenance":"source"}],"speed":{"daysToPublicExploit":null,"firstExploitFrom":null,"daysToKev":null},"priority":{"score":26.1,"factors":[{"name":"In a KEV catalog","points":0.0,"detail":"not listed"},{"name":"Recent KEV listing","points":0.0,"detail":"not listed"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":19.93,"detail":"percentile 0.9966"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":0.0,"detail":"none found"},{"name":"Mentioned in OTX pulses","points":0.0,"detail":"0 pulses"},{"name":"CVSS severity","points":6.16,"detail":"base score 8.8"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}