CVE-2025-3928: Commvault Web Server Unspecified Vulnerability
Advisory generated from the CVE record, CISA, Exploit Observer and VEDAS: what it is, whether it is exploited, who is affected, and how to fix and detect it.
Generated by VEDAS. Scores as of 2026-11-01 19:19 UTC. Rebuilt every few hours from cve-scores, CISA KEV and vedas-signatures. How this works and its limits.
What it is
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.
Description quoted from the CVE record (assigned by cisa-cg, published 2025-04-25).
Weakness: CWE-94 Improper Control of Generation of Code (‘Code Injection’)
How it can be exploited
Exploitable over the network with low attack complexity with no special attack requirements needing low privileges and no user interaction. Impact: confidentiality high, integrity high, availability high. CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CISA assessment (SSVC): CISA has no evidence of exploitation. Automatable: no. Technical impact: total.
- On CISA KEV since
- 2025-04-28
- US federal deadline
- 2025-05-19
- Ransomware use
- Not known
Public exploit evidence (Exploit Observer)
Also known as: BDU:2025-05191, CNNVD-202504-3730, EUVD-2025-12508, GHSA-wqxv-v2vg-q37x
Exploit Observer links 1 piece of public exploit code or detection modules that name this CVE or one of its aliases.
Exploit code and modules (1)
Code that names this CVE. A repository can be a working exploit, a scanner, a fake or malware; read it before running anything.
- Code repository: https://github.com/totunm/cve-2025-3928
Vulnerability databases and vendor advisories (8)
Catalogue entries, not exploit evidence.
- Vulnerability database or vendor advisory: https://cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2025-3928
- Vulnerability database or vendor advisory: https://euvd.enisa.europa.eu/enisa/EUVD-2025-12508
- Vulnerability database or vendor advisory: https://github.com/advisories/GHSA-wqxv-v2vg-q37x
- Vulnerability database or vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2025-3928
- Vulnerability database or vendor advisory: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-3928
- Vulnerability database or vendor advisory: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2025-3928
- Vulnerability database or vendor advisory: https://www.cnnvd.org.cn/home/globalSearch?keyword=CNNVD-202504-3730
- Vulnerability database or vendor advisory: https://www.tenable.com/cve/CVE-2025-3928
134 more references returned by Exploit Observer did not name this CVE or an alias, so they are left out.
VEDAS data as of 2026-11-01T17:12 UTC; fetched 2026-11-02.
Live scores
- EPSS
- 0.025
some chance of attack soon - VEDAS
- 0.742
some exploit evidence - On CISA KEV
- Yes, since 2025-04-28
- Detection rule
- None yet
Thin horizontal line: the “likely” (EPSS 0.10) or “strong” (VEDAS 0.90) threshold. Shaded “no data” areas are periods when cve-scores did not publish. The vertical line is the day CISA added it to its exploited list.
Who is affected
| Product | Affected | Not affected |
|---|---|---|
| Commvault Web Server | from 11.36.0 before 11.36.46 from 11.32.0 before 11.32.89 from 11.28.0 before 11.28.141 from 11.20.0 before 11.20.217 | 11.36.46 is not affected; 11.32.89 is not affected; 11.28.141 is not affected; 11.20.217 is not affected |
Version ranges exactly as the CVE record states them. “Before X” means X is the first fixed version.
Exploit Observer also maps it to: commvault commvault, commvault_systems_inc. commvault.
How to fix it
Fixed versions stated in the CVE record: 11.36.46, 11.32.89, 11.28.141, 11.20.217.
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.
Vendor guidance:
- https://documentation.commvault.com/securityadvisories/CV_2025_03_1.html
- https://www.commvault.com/blogs/notice-security-advisory-update
- https://nvd.nist.gov/vuln/detail/CVE-2025-3928
How to detect it
There is no open VEDAS detection rule for this bug yet. It is listed on the detection gaps page if CISA has confirmed attacks.
Advisories on this CVE
- Commvault Command Center RCE (CVE-2025-34028) and the Metallic/Azure webshell (CVE-2025-3928) (2 May 2025)
References
Government sources
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-3928 (government-resource)
Other references
- url
- url
- url
- url
- url
- url
- https://www.bleepingcomputer.com/news/security/commvault-says-recent-breach-didnt-impact-customer-backup-data/
Other databases
Where this comes from
This advisory is generated automatically by VEDAS from: CVE.org record, CISA KEV, cve-scores (EPSS and VEDAS), Exploit Observer. Text in quotes is reproduced from the source; everything else is a fixed template filled with source fields. Nothing here is written by a language model. Check the vendor advisory before acting, and read how VEDAS and Exploit Observer work, and their limits.