---
id: "CVE-2022-41049"
kind: "vulnerability"
aliases: ["CVE-2022-41049"]
title: "Windows Mark of the Web Security Feature Bypass Vulnerability"
severity: "medium"
cvss: 5.4
epss: null
exploited: true
status: "open"
category: "infrastructure"
products: [{"name": "Microsoft Windows", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "microsoft windows 10 1507", "fixed": ["10.0.10240.19567"], "affected": "< 10.0.10240.19567", "ecosystem": "vendor"}, {"name": "microsoft windows 10 1607", "fixed": ["10.0.14393.5501"], "affected": "< 10.0.14393.5501", "ecosystem": "vendor"}, {"name": "microsoft windows 10 1809", "fixed": ["10.0.17763.3650"], "affected": "< 10.0.17763.3650", "ecosystem": "vendor"}, {"name": "microsoft windows 10 20h2", "fixed": ["10.0.19042.2251"], "affected": "< 10.0.19042.2251", "ecosystem": "vendor"}, {"name": "microsoft windows 10 21h1", "fixed": ["10.0.19043.2251"], "affected": "< 10.0.19043.2251", "ecosystem": "vendor"}, {"name": "microsoft windows 10 21h2", "fixed": ["10.0.19044.2251"], "affected": "< 10.0.19044.2251", "ecosystem": "vendor"}, {"name": "microsoft windows 10 22h2", "fixed": ["10.0.19045.2251"], "affected": "< 10.0.19045.2251", "ecosystem": "vendor"}, {"name": "microsoft windows 11 21h2", "fixed": ["10.0.22000.1219"], "affected": "< 10.0.22000.1219", "ecosystem": "vendor"}, {"name": "microsoft windows 11 22h2", "fixed": ["10.0.22621.819"], "affected": "< 10.0.22621.819", "ecosystem": "vendor"}, {"name": "microsoft windows server 2016", "fixed": ["10.0.14393.5501"], "affected": "< 10.0.14393.5501", "ecosystem": "vendor"}, {"name": "microsoft windows server 2019", "fixed": ["10.0.17763.3650"], "affected": "< 10.0.17763.3650", "ecosystem": "vendor"}, {"name": "microsoft windows server 2022", "fixed": ["10.0.20348.1249"], "affected": "< 10.0.20348.1249", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["exploited", "infrastructure", "windows"]
not_affected_if: []
published_at: "2022-11-09T22:15:19+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-2022-41049", "first_seen_at": "2026-10-23T19:11:52+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-41049", "first_seen_at": "2026-10-23T22:29:04+00:00"}]
---

# Windows Mark of the Web Security Feature Bypass Vulnerability

Windows Mark of the Web, the flag that tells Windows a file came from the internet, can be bypassed so downloaded files lose that warning. An attacker gets limited integrity and availability loss in security features, and CISA lists it as actively exploited.

_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 < 10.0.10240.19567 fixed 10.0.10240.19567
- vendor:microsoft windows 10 1607 affected < 10.0.14393.5501 fixed 10.0.14393.5501
- vendor:microsoft windows 10 1809 affected < 10.0.17763.3650 fixed 10.0.17763.3650
- vendor:microsoft windows 10 20h2 affected < 10.0.19042.2251 fixed 10.0.19042.2251
- vendor:microsoft windows 10 21h1 affected < 10.0.19043.2251 fixed 10.0.19043.2251
- vendor:microsoft windows 10 21h2 affected < 10.0.19044.2251 fixed 10.0.19044.2251
- vendor:microsoft windows 10 22h2 affected < 10.0.19045.2251 fixed 10.0.19045.2251
- vendor:microsoft windows 11 21h2 affected < 10.0.22000.1219 fixed 10.0.22000.1219
- vendor:microsoft windows 11 22h2 affected < 10.0.22621.819 fixed 10.0.22621.819
- vendor:microsoft windows server 2016 affected < 10.0.14393.5501 fixed 10.0.14393.5501
- vendor:microsoft windows server 2019 affected < 10.0.17763.3650 fixed 10.0.17763.3650
- vendor:microsoft windows server 2022 affected < 10.0.20348.1249 fixed 10.0.20348.1249

## Fix

Apply the Microsoft Windows security updates per vendor instructions (CISA required action); the specific patched build is unknown from these sources.

## Timeline

- 2026-10-23T19:11:52+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2022-41049
- 2026-10-23T22:29:04+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2022-41049

## From the sources

Microsoft Windows Mark of the Web (MOTW) contains a security feature bypass vulnerability resulting in a limited loss of integrity and availability of security features.

CISA required action: Apply updates per vendor instructions.

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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_