Is CVE-2022-41091 actively exploited?

Yes. KEV Intelligence tracks CVE-2022-41091 as a known exploited vulnerability. Confidence is confirmed.

What exploitation activity has KEV Intelligence observed?

KEV Intelligence has not yet recorded sensor-observed exploitation attempts for CVE-2022-41091. Our sensors continue to monitor for activity targeting this CVE.

Which versions are affected?

CVE-2022-41091 affects Microsoft Windows 10 Version 1507 and 13 other products. KEV Intelligence lists 15 version rows; examples include 10.0.10240.0 to < 10.0.10240.19567, 10.0.14393.0 to < 10.0.14393.5501, and 10.0.17763.0 to < 10.0.17763.3650.

Yes. CVE-2022-41091 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

CVE-2022-41091 Exploited in the Wild — Windows 10 Version 1507, Windows 10 Version 1607, Windows 10 Version 1809, Windows 10 Version 20H2, Windows 10 Version 21H1, Windows 10 Version 21H2, Windows 10 Version 22H2, Windows 11 version 21H2, Windows 11 version 22H2, Windows Server 2016, Windows Server 2016 (Server Core installation), Windows Server 2019, Windows Server 2019 (Server Core installation), Windows Server 2022

Q: What is CVE-2022-41091?

CVE-2022-41091 is an unauthenticated Windows Mark of the Web Security Feature Bypass Vulnerability affecting Microsoft Windows 10 Version 1507 and 13 other products.

Q: How should organizations remediate it?

Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.

Q: Is it in CISA KEV?

Yes. CVE-2022-41091 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

Decision summary

What security teams need to know first

Direct answers before the deeper technical record.

What it is

CVE-2022-41091 is an unauthenticated Windows Mark of the Web Security Feature Bypass Vulnerability affecting Microsoft Windows 10 Version 1507 and 13 other products.

Is it exploited?

Yes. KEV Intelligence tracks this CVE as a known exploited vulnerability. Confidence is confirmed.

Who is affected?

Microsoft / Windows 10 Version 1507 affected before 10.0.10240.19567.

What should we do?

Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.

Overview

Windows Mark of the Web Security Feature Bypass Vulnerability

Vendor Product Affected Status

Microsoft Windows 10 Version 1507 Before 10.0.10240.19567 Affected

Microsoft Windows 10 Version 1607 Before 10.0.14393.5501 Affected

Microsoft Windows 10 Version 1809 Before 10.0.17763.3650 Affected

Microsoft Windows 10 Version 20H2 Before 10.0.19042.2251 Affected

Microsoft Windows 10 Version 21H1 Before 10.0.19043.2251 Affected

Microsoft Windows 10 Version 21H2 Before 10.0.19044.2251 Affected

Microsoft Windows 10 Version 22H2 Before 10.0.19045.2251 Affected

Microsoft Windows 11 version 21H2 Before 10.0.22000.1219 Affected

Microsoft Windows 11 version 22H2 Before 10.0.22621.819 Affected

Microsoft Windows Server 2016 Before 10.0.14393.5501 Affected

Microsoft Windows Server 2016 (Server Core installation) Before 10.0.14393.5501 Affected

Microsoft Windows Server 2019 Before 10.0.17763.3650 Affected

Microsoft Windows Server 2019 (Server Core installation) Before 10.0.17763.3650 Affected

Microsoft Windows Server 2022 Before 10.0.20348.1249 Affected

View vendor advisory

Published: 09 Nov 2022
Exploitation Reported: 08 Nov 2022
Attack vector: Remote
Complexity: Low
Privileges: None
User interaction: Required

CVE References

CVE Record CVE.org · CVE Record https://www.cve.org/CVERecord?id=CVE-2022-41091
Windows Mark of the Web Security Feature Bypass Vulnerability msrc.microsoft.com · Vendor Advisory https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-41091

Exploitation evidence

Why KEV Intelligence marks this CVE as exploited

Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.

Exploited in the wild

CISA

Recorded 08 Nov 2022

Independent exploitation attestation added to the KEV Intelligence record.

Used in malware

CISA

Recorded 02 Jun 2026

Malware families have been linked to exploitation of this CVE.

Known exploited vulnerability sources

Per-source evidence links for KEV attestations are available through the KEV Intelligence Pro API.

Learn about Pro API access

Source	Added
CISA First	2022-11-08 00:00 UTC
CVE	2026-08-10 15:31 UTC

Detection

Operational artifacts and observed signals

Make the evidence actionable in scanner, SOC, and edge-control workflows.

Observed signals

Request targets: 0
User-Agents: 0

Raw values available in Pro and Enterprise.

Scanner coverage

Nessus template detected 02 Jun 2025.

View Nessus template

Virtual patch status

No KEV Intelligence virtual patch is currently available. Future rules ship for ModSecurity, Cloudflare, and AWS WAF.

Learn about virtual patches →

Scanner Artifacts

Scanner and exploit-framework references linked to this CVE.

Scanner	Reference	Detected
Nessus	https://www.tenable.com/plugins/nessus/167116	02 Jun 2025

Risk and context

Severity, weaknesses, and research context

CVSS v3.1

5.4 Medium

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L/E:U/RL:O/RC:C

EPSS

2.0%

Weaknesses

Incorrect Authorization CWE-863

Timeline

From disclosure to observed exploitation

10 Aug 2026
KEV confirmed by CVE

Exploitation attested by an external source
02 Jun 2026
First public exploitation report

Exploit observed in malware
02 Jun 2025
Nessus plugin available

Scanner coverage available
09 Nov 2022
CVE published

Vulnerability disclosed publicly
08 Nov 2022
Added to CISA KEV

Listed in the CISA Known Exploited Vulnerabilities catalog
19 Sep 2022
CVE ID reserved

Identifier reserved by the CNA

Pro API

Automate this intelligence

Confidence, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.

View Pro pricing Read API docs

Evidence confidence and provenance
First-party sensor telemetry
PoC and scanner references
Affected versions and enrichment
Automation-ready JSON delivery

GET /api/v2/pro/kevs/CVE-2022-41091

Free JSON includes basic KEV fields

{
  "cve_id": "CVE-2022-41091",
  "confidence": "Confirmed",
  "cvss_score": 5.4,
  "cvss_estimated": false,
  "epss_score": 0.01986,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": false
  },
  "sensor_telemetry": { "attempts": 0, "sensors": 0 }
}

CVE-2022-41091

What security teams need to know first

Windows Mark of the Web Security Feature Bypass Vulnerability

Tags

CVE References

Why KEV Intelligence marks this CVE as exploited

Exploited in the wild

Used in malware

Known exploited vulnerability sources

Operational artifacts and observed signals

Observed signals

Scanner coverage

Virtual patch status

Scanner Artifacts

Severity, weaknesses, and research context

Weaknesses

From disclosure to observed exploitation

KEV confirmed by CVE

First public exploitation report

Nessus plugin available

CVE published

Added to CISA KEV

CVE ID reserved

Automate this intelligence

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