---
id: "CVE-2025-3928"
kind: "vulnerability"
aliases: ["CVE-2025-3928"]
title: "Commvault Web Server has an unspecified vulnerability that can be exploited by a remote, authenticated attacker"
severity: "high"
cvss: 8.8
epss: null
exploited: true
status: "open"
category: "vendor"
products: [{"name": "Commvault Web Server", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "commvault", "fixed": ["11.20.217"], "affected": ">= 11.20.0, < 11.20.217", "ecosystem": "vendor"}, {"name": "commvault", "fixed": ["11.28.141"], "affected": ">= 11.28.0, < 11.28.141", "ecosystem": "vendor"}, {"name": "commvault", "fixed": ["11.32.89"], "affected": ">= 11.32.0, < 11.32.89", "ecosystem": "vendor"}, {"name": "commvault", "fixed": ["11.36.46"], "affected": ">= 11.36.0, < 11.36.46", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["commvault", "exploited", "self-hosted", "vendor"]
not_affected_if: ["no-commvault-web-server"]
published_at: "2025-04-25T16:15:27+00:00"
first_seen_at: "2026-10-23T19:11:51+00:00"
updated_at: "2026-10-23T22:29:05+00:00"
sources: [{"source": "kev", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2025-3928", "first_seen_at": "2026-10-23T19:11:51+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-3928", "first_seen_at": "2026-10-23T22:29:05+00:00"}]
---

# Commvault Web Server has an unspecified vulnerability that can be exploited by a remote, authenticated attacker

Commvault Web Server has an unspecified flaw that lets a remote attacker with valid credentials create and run webshells on the server. CISA lists it as actively exploited in the wild.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- vendor:Commvault Web Server affected ? fixed ?
- vendor:commvault affected >= 11.20.0, < 11.20.217 fixed 11.20.217
- vendor:commvault affected >= 11.28.0, < 11.28.141 fixed 11.28.141
- vendor:commvault affected >= 11.32.0, < 11.32.89 fixed 11.32.89
- vendor:commvault affected >= 11.36.0, < 11.36.46 fixed 11.36.46

## Fix

Apply the mitigations from Commvault's vendor instructions, as directed by CISA's required action; if mitigations are unavailable, discontinue use of the product.

## Timeline

- 2026-10-23T19:11:51+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2025-3928
- 2026-10-23T22:29:05+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2025-3928

## From the sources

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.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_