Commvault Web Server Unspecified Vulnerability
Commvault — Web Server
Commvault Web Server has an unspecified vulnerability that can be exploited by a remote, authenticated attacker. According to the Commvault advisory: "Webservers can be compromised through bad actors creating and executing webshells." Fixed in version 11.36.46, 11.32.89, 11.28.141, and 11.20.217 for Windows and Linux platforms. This vulnerability was added to the CISA Known Exploited Vulnerabilities (KEV) Catalog on 2025-04-28.
8.8
2.0%
Vector breakdown
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Published
- Apr 25, 2025
- Modified
- Feb 26, 2026
- Added to KEV
- Apr 28, 2025
- Federal patch due
- May 19, 2025
CISA required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Proof-of-concept & exploitation references
Weaponization
Public repositories whose name or description references CVE-2025-3928, found via a live GitHub search at request time. These are community-sourced signals, not a verified working exploit - cross-check each one before relying on it, and treat higher star counts and recent activity as (weak) corroboration, not proof.
No public GitHub repositories referencing CVE-2025-3928 were found at last check. Absence here is not proof no exploit exists - see the references below for vendor advisories and write-ups.
References
Frequently asked questions
What is CVE-2025-3928?
Commvault Web Server has an unspecified vulnerability that can be exploited by a remote, authenticated attacker. According to the Commvault advisory: "Webservers can be compromised through bad actors creating and executing webshells." Fixed in version 11.36.46, 11.32.89, 11.28.141, and 11.20.217 for Windows and Linux platforms. This vulnerability was added to the CISA Known Exploited Vulnerabilities (KEV) Catalog on 2025-04-28.
How severe is CVE-2025-3928?
CVE-2025-3928 has a CVSS base score of 8.8 out of 10 (CVSS 3.1).
Is CVE-2025-3928 actively exploited in the wild?
Yes. CVE-2025-3928 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added Apr 28, 2025, meaning CISA has confirmed evidence of active exploitation.
What is the EPSS score for CVE-2025-3928?
2.0% - meaning FIRST.org's EPSS model estimates a 2.0% probability this vulnerability will be exploited in the wild within 30 days (79% percentile among all scored CVEs).
Cross-checked against
Impactr finds and proves whether CVE-2025-3928 - or flaws like it - are actually reachable in your own web apps and APIs, with a reproducible exploit as evidence.
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