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CVE-2025-3928

8.8, high Known exploited

Commvault Web Server Unspecified Vulnerability

NVD (opens in a new tab) CVE.org (opens in a new tab) CISA KEV catalogue (opens in a new tab)
CVSS
8.8, high high CVSS v3.1
EPSS, next 30 days
2% higher than 84.3% of scored CVEs
Exploitation
Confirmed in the wild
Published
25 Apr 2025a year ago

Known exploited

CISA added this to the Known Exploited Vulnerabilities Catalog on 28 Apr 2025. US federal agencies had to remediate by 19 May 2025, a deadline that has passed.

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.

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.

Details

Vendor
Commvault
Product
Web Server
Weakness
CWE-94 (opens in a new tab)
Status
Analyzed
Updated
8 Oct 2026
Assigner
9119a7d8-5eab-497f-8521-727c672e3725

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References 8

Advisories 7

Other references 1

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other Commvault CVEs

Every Commvault CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2025-34028 Commvault Command Center Path Traversal Vulnerability KEV EPSS 98% 10, critical
  • CVE-2026-77089 Command Center API contained an authentication bypass issue affecting privilege management EPSS 0.6% 9.8, critical
  • CVE-2026-77092 Commvault Cloud Deserialization of Untrusted Data Vulnerability EPSS 0.3% 9.8, critical
  • CVE-2026-77098 Commvault Cloud SQL Injection Vulnerability EPSS 0.5% 9.8, critical
  • CVE-2026-77091 Commvault Cloud Path Traversal Vulnerability EPSS 0.2% 7.8, high
  • CVE-2026-77097 Commvault Cloud Missing Authentication for Critical Function Vulnerability EPSS 0.5% 8.2, high
  • CVE-2026-77101 Commvault Cloud Stack-based Buffer Overflow Vulnerability EPSS 0.5% 7.5, high
  • CVE-2026-77102 Commvault Cloud Heap-based Buffer Overflow Vulnerability EPSS 0.5% 7.5, high

Beyond this page

Is CVE-2025-3928 in your network?

This page tells you how dangerous CVE-2025-3928 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

CVE-2025-3928 is in the CISA catalogue of exploited vulnerabilities: attackers are already exploiting it.

  • EXYS7600 OCELOT

    Find it before attackers do

    Ocelot scans your network on a schedule and reports every vulnerability it finds by its CVE identifier, with its CVSS score and how many of your hosts are affected. A finding like CVE-2025-3928 comes with the devices to patch.

    Learn more about EXYS7600 OCELOT

  • EXYS7950 KONDRA

    Detect it if it's exploited

    Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.

    Learn more about EXYS7950 KONDRA
Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 17 Oct 2026, not the live upstream state.