Is CVE-2022-21894 actively exploited?

Yes. KEV Intelligence tracks CVE-2022-21894 as a known exploited vulnerability. Confidence is high.

What exploitation activity has KEV Intelligence observed?

KEV Intelligence has not yet recorded sensor-observed exploitation attempts for CVE-2022-21894. Our sensors continue to monitor for activity targeting this CVE.

Which versions are affected?

CVE-2022-21894 affects Microsoft Windows 10 Version 1809 and 18 other products. KEV Intelligence lists 20 version rows; examples include 10.0.17763.0 to < 10.0.17763.2452 and 10.0.0 to < 10.0.17763.2452.

No. CVE-2022-21894 is not currently listed in CISA KEV.

CVE-2022-21894 Exploited in the Wild — Windows 10 Version 1809, Windows Server 2019, Windows Server 2019 (Server Core installation), Windows 10 Version 1909, Windows 10 Version 21H1, Windows Server 2022, Windows 10 Version 20H2, Windows Server version 20H2, Windows 11 version 21H2, Windows 10 Version 21H2, Windows 10 Version 1507, Windows 10 Version 1607, Windows Server 2016, Windows Server 2016 (Server Core installation), Windows 8.1, Windows Server 2012, Windows Server 2012 (Server Core installation), Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation)

Q: What is CVE-2022-21894?

CVE-2022-21894 is Secure Boot Security Feature Bypass Vulnerability affecting Microsoft Windows 10 Version 1809 and 18 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?

No. CVE-2022-21894 is not currently listed in CISA KEV.

Decision summary

What security teams need to know first

Direct answers before the deeper technical record.

What it is

CVE-2022-21894 is Secure Boot Security Feature Bypass Vulnerability affecting Microsoft Windows 10 Version 1809 and 18 other products.

Is it exploited?

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

Who is affected?

Microsoft / Windows 10 Version 1809 affected before 10.0.17763.2452.

What should we do?

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

Overview

Secure Boot Security Feature Bypass Vulnerability

Vendor Product Affected Status

Microsoft Windows 10 Version 1809 Before 10.0.17763.2452 Affected

Microsoft Windows Server 2019 Before 10.0.17763.2452 Affected

Microsoft Windows Server 2019 (Server Core installation) Before 10.0.17763.2452 Affected

Microsoft Windows 10 Version 1909 Before 10.0.18363.2037 Affected

Microsoft Windows 10 Version 21H1 Before 10.0.19043.1466 Affected

Microsoft Windows Server 2022 Before 10.0.20348.469 Affected

Microsoft Windows 10 Version 20H2 Before 10.0.19042.1466 Affected

Microsoft Windows Server version 20H2 Before 10.0.19042.1466 Affected

Microsoft Windows 11 version 21H2 Before 10.0.22000.434 Affected

Microsoft Windows 10 Version 21H2 Before 10.0.19044.1466 Affected

Microsoft Windows 10 Version 1507 Before 10.0.10240.19177 Affected

Microsoft Windows 10 Version 1607 Before 10.0.14393.4886 Affected

Microsoft Windows Server 2016 Before 10.0.14393.4886 Affected

Microsoft Windows Server 2016 (Server Core installation) Before 10.0.14393.4886 Affected

Microsoft Windows 8.1 Before 6.3.9600.20246 Affected

Microsoft Windows Server 2012 Before 6.2.9200.23584 Affected

Microsoft Windows Server 2012 (Server Core installation) Before 6.2.9200.23584 Affected

Microsoft Windows Server 2012 R2 Before 6.3.9600.20246 Affected

Microsoft Windows Server 2012 R2 (Server Core installation) Before 6.3.9600.20246 Affected

View vendor advisory

Published: 11 Jan 2022
Exploitation Reported: 11 Jan 2022
Attack vector: Local
Complexity: Low
Privileges: High
User interaction: None

CVE References

CVE Record CVE.org · CVE Record https://www.cve.org/CVERecord?id=CVE-2022-21894
Secure Boot Security Feature Bypass Vulnerability msrc.microsoft.com · Vendor Advisory https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-21894

Exploitation evidence

Exploitation evidence for this CVE

Catalogues and sources that list this CVE as a known exploited vulnerability, when available.

No exploitation evidence rows are recorded for this CVE yet.

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
CVE First	2022-01-11 20:22 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

No scanner integrations recorded yet.

Virtual patch status

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

Learn about virtual patches →

No detection artifacts or sensor request patterns are available for this CVE yet.

Check back as sensor telemetry and scanner integrations are updated.

Risk and context

Severity, weaknesses, and research context

CVSS v3.1

4.4 Medium

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

EPSS

6.6%

Weaknesses

Incorrect Authorization CWE-863

Timeline

From disclosure to observed exploitation

11 Jan 2022
Added to KEV Intelligence KEV Feed

High-confidence, third-party attested exploitation
11 Jan 2022
CVE published

Vulnerability disclosed publicly
14 Dec 2021
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.

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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-2022-21894

Free JSON includes basic KEV fields

{
  "cve_id": "CVE-2022-21894",
  "confidence": "High",
  "cvss_score": 4.4,
  "cvss_estimated": false,
  "epss_score": 0.06567,
  "exploit_status": {
    "exploited_in_the_wild": false,
    "active_exploitation_observed": false
  },
  "sensor_telemetry": { "attempts": 0, "sensors": 0 }
}

CVE-2022-21894