Vulnerability · Published Jan 10, 2023 · Assigned by microsoft
CVE-2023-21768Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
High 7.8
In plain English
A high-severity security flaw in Windows 11 version 21H2 from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 65.4% (higher than 99.3% of all known vulnerabilities). Ready-made attack tooling exists: Metasploit, public proof-of-concept code.
Severity (CVSS 3.1)7.8High
Exploit odds (30 days)65.4%top 0.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack tooling2Metasploit, Public PoC
Official description
Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows Server 2022 | 10.0.20348.0 – before 10.0.20348.1487 |
| Microsoft | Windows 11 version 21H2 | 10.0.0 – before 10.0.22000.1455 |
| Microsoft | Windows 11 version 22H2 | 10.0.22621.0 – before 10.0.22621.1105 |
Weakness: CWE-822 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C