CVE-2023-21768 Public exploit High · 7.8 EPSS 65.4%
Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
Microsoft · Windows Server 2022
Summary
The Windows Ancillary Function Driver for WinSock in Microsoft Windows Server 2022 contains an elevation of privilege flaw involving untrusted pointer dereference. A local attacker with low-privileged credentials and no required user interaction could exploit it to gain elevated privileges.
Heading is the official description · CVE.org
Priority scorePatchfirst’s 0 to 100 ranking. It adds points for CISA KEV listing, ransomware use, EPSS, threat reports, public exploit code and CVSS. Every CVE page shows the breakdown. Breakdown
66.7 / 100
- Exploited
- Yes, in VulnCheck KEV
- Reports
- 0
- Tactics
- 0/15
Exploitation timelineDated milestones for a CVE: when it was disclosed, when exploit code became public, when exploitation was confirmed, and when threat reports named it.
First seen exploited 2 months after disclosure. Public exploit code (Metasploit) was available the same day.
- First seen exploitedVulnCheck KEV evidence+2 mo
MITRE ATT&CKA public catalogue of the techniques attackers use, maintained by MITRE. Patchfirst uses it to describe what attackers do with a vulnerability. techniques
No techniques linkedNo ATT&CK techniques are linked to this CVE yet. MITRE CTID has not mapped it, and no report passage in the corpus ties it to a technique.
What security researchers reported
Not named in any threat report yetAlso mentioned in 3 community threat pulses (AlienVault OTX)
Weaker evidencePulses are indicator collections that anyone can publish. A mention is not confirmation of exploitation.