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CVE-2025-3928: Commvault Web Server Unspecified Vulnerability

criticalknown exploitedCVE-2025-3928
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
Commvault Web Server contains an unspecified vulnerability that allows a remote, authenticated attacker to create and execute webshells.

CSIRTS triage

vendor: Commvaultproduct: Web ServerRemote code execution
What
The vulnerability allows a remote, authenticated attacker to create and execute webshells.
Who is affected
Authenticated users of Commvault Web Server are affected.
Urgency
Remediation is urgent due to active exploitation and critical severity.
Action
Update to the latest version of Commvault Web Server.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2025-04-28
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2025-3928

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2025-3928coverage & exploitation statusNVD · CVE.org

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