CVE-2022-21920
Published: 11 January 2022
Summary
CVE-2022-21920 is a high-severity an unspecified weakness vulnerability in Microsoft Windows 10. Its CVSS base score is 8.8 (High).
Operationally, ranked in the top 7.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
CVE-2022-21920 is an elevation-of-privilege vulnerability in the Windows Kerberos implementation. It affects the Kerberos authentication component on supported Windows systems and carries a CVSS 3.1 base score of 8.8 reflecting network attack vector, low complexity, and low privileges required.
An authenticated attacker with low-privileged network access can exploit the flaw to obtain higher privileges, potentially resulting in full control over confidentiality, integrity, and availability on the target system without user interaction.
Microsoft has published security advisories and guidance at the referenced MSRC pages that detail available patches and mitigation steps for the vulnerability.
The associated EPSS score has remained flat at 0.0874 with no material increase after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-27076
Vulnerability details
Windows Kerberos Elevation of Privilege 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.