What is CVE-2025-3928?

CVE-2025-3928 is a high-severity vulnerability in Commvault, classified under CWE-NOINFO NOT ENOUGH INFORMATION. CVSS score: 8.8/10. Published 2025-04-25.

How severe is CVE-2025-3928?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2025-3928 known to be exploited?

Yes. CVE-2025-3928 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2025-04-28), indicating it is being actively exploited. 5 public proof-of-concept repositories are indexed.

Vulnerability in Commvault

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.

EPSS: 0.021 (80.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Commvault
Commvault Web Server — versions 11.36.0, 11.36.46, 11.32.0
Linux Linux_kernel
Microsoft Windows

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2025-04-28. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2025-05-19.

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.

Public proof-of-concept exploits

References

9119a7d8-5eab-497f-8521-727c672e3725 (Vendor Advisory)
9119a7d8-5eab-497f-8521-727c672e3725 (US Government Resource, Third Party Advisory)
9119a7d8-5eab-497f-8521-727c672e3725 (Vendor Advisory)
9119a7d8-5eab-497f-8521-727c672e3725 (Vendor Advisory)
9119a7d8-5eab-497f-8521-727c672e3725 (US Government Resource, Third Party Advisory)
9119a7d8-5eab-497f-8521-727c672e3725 (Vendor Advisory)
af854a3a-2127-422b-91ae-364da2661108 (Third Party Advisory)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)

Frequently asked questions

What is CVE-2025-3928?: CVE-2025-3928 is a high-severity vulnerability in Commvault, classified under CWE-NOINFO NOT ENOUGH INFORMATION. CVSS score: 8.8/10. Published 2025-04-25.
How severe is CVE-2025-3928?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2025-3928 known to be exploited?: Yes. CVE-2025-3928 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2025-04-28), indicating it is being actively exploited. 5 public proof-of-concept repositories are indexed.