CVEs / CVE-2025-3928
CVE-2025-3928: Commvault Web Server Unspecified Vulnerability
- Known exploited in the CISA KEV catalog since 28 Apr 2025
- high 8.8 CVSS 3.1 (NVD)
- EPSS 2.52% chance of exploitation in the next 30 days, higher than 84% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
Commvault Web Server contains an unspecified vulnerability that allows a remote, authenticated attacker to create and execute webshells.
Description
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.
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| Commvault Web Server | from 11.36.0, before 11.36.46 | 11.36.46 |
| Commvault Web Server | from 11.32.0, before 11.32.89 | 11.32.89 |
| Commvault Web Server | from 11.28.0, before 11.28.141 | 11.28.141 |
| Commvault Web Server | from 11.20.0, before 11.20.217 | 11.20.217 |
Exploitation
| In CISA KEV since | 28 Apr 2025 |
|---|---|
| Due date for US federal agencies | 19 May 2025 |
| Used in ransomware campaigns | Unknown |
| 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. |
Severity
| CVSS 3.1 | 8.8 highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HScored by NVD |
|---|---|
| Weakness | CWE-94 |
References
- CVE-2025-3928 on NVD
- CVE-2025-3928 in the CISA KEV catalog
- https://documentation.commvault.com/securityadvisories/CV_2025_03_1.html (cited by CISA)
- https://www.commvault.com/blogs/notice-security-advisory-update (cited by CISA)
- https://documentation.commvault.com/securityadvisories/CV_2025_03_1.html Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2025-3928 Third Party Advisory, US Government Resource
- https://www.cisa.gov/news-events/alerts/2025/05/22/advisory-update-cyber-threat-activity-targeting-commvaults-saas-cloud-application-metallic Third Party Advisory, US Government Resource
- https://www.commvault.com/blogs/customer-security-update Vendor Advisory
- https://www.commvault.com/blogs/notice-security-advisory-update Broken Link, Vendor Advisory
- https://www.commvault.com/blogs/security-advisory-march-7-2025 Vendor Advisory
- https://www.bleepingcomputer.com/news/security/commvault-says-recent-breach-didnt-impact-customer-backup-data/ Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-3928 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.