Vulnerability in Microsoft Windows 10 Version 1809
CVE-2022-21971
Windows Runtime Remote Code Execution Vulnerability
EPSS: 0.878 (99.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C.
Affected products
- Microsoft Windows 10 Version 1809 — versions 10.0.17763.0, 10.0.0
- Microsoft Windows 10 Version 1909 — versions 10.0.0
- Microsoft Windows 10 Version 20h2 — versions 10.0.0
- Microsoft Windows 10 Version 21h1 — versions 10.0.0
- Microsoft Windows 10 Version 21h2 — versions 10.0.19043.0
- Microsoft Windows 11 Version 21h2 — versions 10.0.0
- Microsoft Windows Server 2019 — versions 10.0.17763.0
- Microsoft Windows Server 2019 (Server Core Installation) — versions 10.0.17763.0
- Microsoft Windows Server 2022 — versions 10.0.20348.0
- Microsoft Windows Server Version 20h2 — versions 10.0.0
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply updates per vendor instructions.
Public proof-of-concept exploits
References
- Windows Runtime Remote Code Execution Vulnerability (vendor-advisory)
Frequently asked questions
- What is CVE-2022-21971?
- CVE-2022-21971 is a high-severity vulnerability in Microsoft Windows 10 Version 1809. CVSS score: 7.8/10. Published 2022-02-09.
- How severe is CVE-2022-21971?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2022-21971 known to be exploited?
- Yes. CVE-2022-21971 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-08-18), indicating it is being actively exploited. 31 public proof-of-concept repositories are indexed.