Exploited vulnerability · CISA KEV

Is CVE-2025-3928 exploited? Yes: in CISA KEV since 28 Apr 2025

Gociux · Commvault Web Server · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2025-3928, Commvault Web Server Unspecified Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 28 Apr 2025, 3 days after it was published. It affects Commvault Web Server. If you run it, CISA's required action is: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

What it is

Commvault Web Server contains an unspecified vulnerability that allows a remote, authenticated attacker to create and execute webshells.

What to do

1. Check whether you run it. Look for Web Server in your asset inventory, including appliances and cloud images. Stack check lists every exploited Commvault CVE at once.
2. Apply the fix. Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
3. If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 25 Apr 2025.
4. Get told next time. Email alerts when CISA adds a CVE for Commvault.

References

• documentation.commvault.com/securityadvisories/CV_2025_03_1.html
• www.commvault.com/blogs/notice-security-advisory-update
• nvd.nist.gov/vuln/detail/CVE-2025-3928

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in April 2025 · Commvault scorecard · act-now radar.