CVE-2025-3928

high

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.

References

https://www.cisa.gov/news-events/alerts/2025/05/22/advisory-update-cyber-threat-activity-targeting-commvaults-saas-cloud-application-metallic

https://www.bleepingcomputer.com/news/security/commvault-says-recent-breach-didnt-impact-customer-backup-data/

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2025-3928

https://www.theregister.com/2025/05/23/cisa_commvault_zero_day/

https://www.securityweek.com/companies-warned-of-commvault-vulnerability-exploitation/

https://thehackernews.com/2025/05/cisa-warns-of-suspected-broader-saas.html

https://www.securityweek.com/critical-commvault-vulnerability-in-attacker-crosshairs/

https://thehackernews.com/2025/05/commvault-cve-2025-34028-added-to-cisa.html

https://www.securityweek.com/more-details-come-to-light-on-commvault-vulnerability-exploitation/

https://thehackernews.com/2025/05/commvault-confirms-hackers-exploited.html

https://www.securityweek.com/cisa-warns-of-exploited-broadcom-commvault-vulnerabilities/

https://www.bleepingcomputer.com/news/security/cisa-tags-broadcom-fabric-os-commvault-flaws-as-exploited-in-attacks/

https://securityaffairs.com/177161/hacking/u-s-cisa-adds-qualitia-active-mail-broadcom-brocade-fabric-os-and-commvault-web-server-flaws-to-its-known-exploited-vulnerabilities-catalog.html

https://www.cisa.gov/news-events/alerts/2025/04/28/cisa-adds-three-known-exploited-vulnerabilities-catalog

https://thehackernews.com/2025/04/cisa-adds-actively-exploited-broadcom.html

https://www.commvault.com/blogs/security-advisory-march-7-2025

https://www.commvault.com/blogs/notice-security-advisory-update

https://www.commvault.com/blogs/customer-security-update

https://documentation.commvault.com/securityadvisories/CV_2025_03_1.html

Details

Source: Mitre, NVD

Published: 2025-04-25

Updated: 2025-05-28

Known Exploited Vulnerability (KEV)

Risk Information

CVSS v2

Base Score: 9

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High

CVSS v4

Base Score: 8.7

Vector: 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

Severity: High

EPSS

EPSS: 0.19464