Commvault Web Server Unspecified Vulnerability

[ Why it matters ]Priority signals

• Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2025-04-28

[ Description ]Official 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.

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

[ Fixes ]Fixes and patches

CISA required action (US federal deadline 19 May 2025): Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

• documentation.commvault.com/securityadvisories/CV_2025_03_1.htmlVendor Advisory
• www.cisa.gov/known-exploited-vulnerabilities-catalogThird Party AdvisoryUS Government Resource
• www.cisa.gov/news-events/alerts/2025/05/22/advisory-update-cyber-threat-activity-target…Third Party AdvisoryUS Government Resource
• www.commvault.com/blogs/customer-security-updateVendor Advisory
• www.commvault.com/blogs/notice-security-advisory-updateBroken LinkVendor Advisory
• www.commvault.com/blogs/security-advisory-march-7-2025Vendor Advisory
• www.bleepingcomputer.com/news/security/commvault-says-recent-breach-didnt-impact-custom…Third Party Advisory
• www.cisa.gov/known-exploited-vulnerabilities-catalogUS Government Resource