---
id: "CVE-2022-30190"
kind: "vulnerability"
aliases: ["CVE-2022-30190"]
title: "A remote code execution vulnerability exists when MSDT is called using the URL protocol from a calling application\u2026"
severity: "critical"
cvss: 9.3
epss: 0.99163
exploited: true
status: "open"
category: "infrastructure"
products: [{"name": "Microsoft Windows", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "microsoft windows 10 1507", "fixed": ["10.0.10240.19325"], "affected": "< 10.0.10240.19325", "ecosystem": "vendor"}, {"name": "microsoft windows 10 1607", "fixed": ["10.0.14393.5192"], "affected": "< 10.0.14393.5192", "ecosystem": "vendor"}, {"name": "microsoft windows 10 1809", "fixed": ["10.0.17763.3046"], "affected": "< 10.0.17763.3046", "ecosystem": "vendor"}, {"name": "microsoft windows 10 20h2", "fixed": ["10.0.19042.1766"], "affected": "< 10.0.19042.1766", "ecosystem": "vendor"}, {"name": "microsoft windows 10 21h1", "fixed": ["10.0.19043.1766"], "affected": "< 10.0.19043.1766", "ecosystem": "vendor"}, {"name": "microsoft windows 10 21h2", "fixed": ["10.0.19044.1766"], "affected": "< 10.0.19044.1766", "ecosystem": "vendor"}, {"name": "microsoft windows 11 21h2", "fixed": ["10.0.22000.739"], "affected": "< 10.0.22000.739", "ecosystem": "vendor"}, {"name": "microsoft windows 7", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "microsoft windows 8.1", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "microsoft windows rt 8.1", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "microsoft windows server 2008", "fixed": [], "affected": "= r2", "ecosystem": "vendor"}, {"name": "microsoft windows server 2012", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "microsoft windows server 2012", "fixed": [], "affected": "= r2", "ecosystem": "vendor"}, {"name": "microsoft windows server 2016", "fixed": ["10.0.14393.5192"], "affected": "< 10.0.14393.5192", "ecosystem": "vendor"}, {"name": "microsoft windows server 2019", "fixed": ["10.0.17763.3046"], "affected": "< 10.0.17763.3046", "ecosystem": "vendor"}, {"name": "microsoft windows server 2022", "fixed": ["10.0.20348.770"], "affected": "< 10.0.20348.770", "ecosystem": "vendor"}, {"name": "microsoft windows server 20h2", "fixed": ["10.0.19042.1766"], "affected": "< 10.0.19042.1766", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["exploited", "infrastructure", "microsoft-office", "ransomware", "windows", "word"]
not_affected_if: ["patched-windows"]
published_at: "2022-06-01T20:15:07+00:00"
first_seen_at: "2026-10-23T19:11:52+00:00"
updated_at: "2026-10-23T22:29:04+00:00"
sources: [{"source": "kev", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2022-30190", "first_seen_at": "2026-10-23T19:11:52+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2022-30190", "first_seen_at": "2026-10-23T19:13:45+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-30190", "first_seen_at": "2026-10-23T22:29:04+00:00"}]
---

# A remote code execution vulnerability exists when MSDT is called using the URL protocol from a calling application…

Windows Support Diagnostic Tool (MSDT) can be triggered via the ms-msdt URL protocol from an application such as Word, so a malicious document can launch it. An attacker who succeeds runs code with the privileges of the calling application, which is the Follina attack.

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

## Affected

- vendor:Microsoft Windows affected ? fixed ?
- vendor:microsoft windows 10 1507 affected < 10.0.10240.19325 fixed 10.0.10240.19325
- vendor:microsoft windows 10 1607 affected < 10.0.14393.5192 fixed 10.0.14393.5192
- vendor:microsoft windows 10 1809 affected < 10.0.17763.3046 fixed 10.0.17763.3046
- vendor:microsoft windows 10 20h2 affected < 10.0.19042.1766 fixed 10.0.19042.1766
- vendor:microsoft windows 10 21h1 affected < 10.0.19043.1766 fixed 10.0.19043.1766
- vendor:microsoft windows 10 21h2 affected < 10.0.19044.1766 fixed 10.0.19044.1766
- vendor:microsoft windows 11 21h2 affected < 10.0.22000.739 fixed 10.0.22000.739
- vendor:microsoft windows 7 affected ? fixed ?
- vendor:microsoft windows 8.1 affected ? fixed ?
- vendor:microsoft windows rt 8.1 affected ? fixed ?
- vendor:microsoft windows server 2008 affected = r2 fixed ?
- vendor:microsoft windows server 2012 affected ? fixed ?
- vendor:microsoft windows server 2012 affected = r2 fixed ?
- vendor:microsoft windows server 2016 affected < 10.0.14393.5192 fixed 10.0.14393.5192
- vendor:microsoft windows server 2019 affected < 10.0.17763.3046 fixed 10.0.17763.3046
- vendor:microsoft windows server 2022 affected < 10.0.20348.770 fixed 10.0.20348.770
- vendor:microsoft windows server 20h2 affected < 10.0.19042.1766 fixed 10.0.19042.1766

## Fix

Apply the Microsoft update for CVE-2022-30190 per vendor instructions (CISA required action); exact KB and build numbers are not in the sources.

## Timeline

- 2026-10-23T19:11:52+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2022-30190
- 2026-10-23T19:13:45+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2022-30190
- 2026-10-23T22:29:04+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2022-30190

## From the sources

A remote code execution vulnerability exists when MSDT is called using the URL protocol from a calling application such as Word. An attacker who successfully exploits this vulnerability can run arbitrary code with the privileges of the calling application. The attacker can then install programs, view, change, or delete data, or create new accounts in the context allowed by the user’s rights.
Please see the MSRC Blog Entry for important information about steps you can take to protect your system from this vulnerability.

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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_