CVE-2022-21889
Published: 11 January 2022
Summary
CVE-2022-21889 is a high-severity an unspecified weakness vulnerability in Microsoft Windows 10. Its CVSS base score is 7.5 (High).
Operationally, ranked in the top 4.6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
CVE-2022-21889 is a denial-of-service vulnerability in the Windows Internet Key Exchange (IKE) Extension. It carries a CVSS 3.1 base score of 7.5 with the vector AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H, reflecting that an unauthenticated network attacker can trigger a high-impact availability failure while leaving confidentiality and integrity untouched.
An attacker with no credentials or user interaction can send crafted network traffic to a reachable Windows system running the affected IKE component, causing the extension to stop responding and disrupting IPsec and VPN session establishment or maintenance.
Microsoft security advisories for CVE-2022-21889 direct administrators to apply the patches released in the January 2022 update cycle; the associated EPSS score has remained flat at 0.1877 with no material rise after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-27045
Vulnerability details
Windows Internet Key Exchange (IKE) Extension Denial of Service Vulnerability
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.