---
id: "CVE-2020-10189"
kind: "vulnerability"
aliases: ["CVE-2020-10189"]
title: "Zoho ManageEngine: Zoho ManageEngine Desktop Central File Upload Vulnerability"
severity: "critical"
cvss: 10.0
epss: 0.99941
exploited: true
status: "open"
category: "vendor"
products: [{"name": "Zoho ManageEngine", "fixed": [], "affected": "", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["desktop-central", "exploited", "self-hosted", "vendor", "windows", "zoho-manageengine"]
not_affected_if: ["managed-hosting", "version-10.0.474-or-later"]
published_at: "2020-03-06T17:15:12+00:00"
first_seen_at: "2026-10-23T19:11:53+00:00"
updated_at: "2026-10-23T20:29:29+00:00"
sources: [{"source": "kev", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2020-10189", "first_seen_at": "2026-10-23T19:11:53+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2020-10189", "first_seen_at": "2026-10-23T19:13:43+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-10189", "first_seen_at": "2026-10-23T19:35:23+00:00"}]
---

# Zoho ManageEngine: Zoho ManageEngine Desktop Central File Upload Vulnerability

Zoho ManageEngine Desktop Central before 10.0.474 deserializes untrusted data in its getChartImage handling, so an unauthenticated remote attacker can execute code on the server. The flaw is in the CewolfServlet and MDMLogUploaderServlet paths and is listed as exploited in the wild.

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

## Affected

- vendor:Zoho ManageEngine affected ? fixed ?

## How to check

Check the installed Desktop Central build version against 10.0.474 in the product's about page or install directory.

## Fix

Upgrade Zoho ManageEngine Desktop Central to 10.0.474 or later.

## Timeline

- 2026-10-23T19:11:53+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2020-10189
- 2026-10-23T19:13:43+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2020-10189
- 2026-10-23T19:35:23+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2020-10189

## From the sources

Zoho ManageEngine Desktop Central before 10.0.474 allows remote code execution because of deserialization of untrusted data in getChartImage in the FileStorage class. This is related to the CewolfServlet and MDMLogUploaderServlet servlets.

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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_