CVE-2023-21817 Windows Kerberos Elevation of Privilege Vulnerability
An attacker can exploit a flaw in Windows Kerberos to elevate privileges on affected Windows operating systems.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-21817?
CVE-2023-21817 is a high-severity vulnerability in Microsoft Windows 10, published on 14 Feb 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Windows Kerberos Elevation of Privilege Vulnerability
Weakness: CWE-287
Which versions are affected by CVE-2023-21817?
It affects 13 products.
Products include Microsoft Windows 10, Microsoft Windows 10 1607, Microsoft Windows 10 1809, Microsoft Windows 10 20h2, Microsoft Windows 10 21h2, Microsoft Windows 10 22h2 and 7 more.
How do I fix CVE-2023-21817?
No fix has been published for CVE-2023-21817 yet. Limit exposure of the affected software until one is available.
Is CVE-2023-21817 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-21817 exists.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in Microsoft Windows 10
- CVE-2015-2426 Microsoft Windows Adobe Type Manager Library Remote Code Execution
- CVE-2015-1769 Microsoft Windows Mount Manager Privilege Escalation
- CVE-2020-1467 Windows Hard Link Elevation of Privilege Vulnerability
- CVE-2021-26424 Windows TCP/IP Remote Code Execution Vulnerability
- CVE-2021-28476 Windows Hyper-V Remote Code Execution Vulnerability
Sources
Also known as GHSA-4w7x-2jcw-qr33.