⚠ Exploited in the wild
Exploitation observed in the wild. Not yet on CISA KEV.

CVE-2023-21768

CWE-822CWE-190 — Integer Overflow9 documents8 sources
Severity
7.8HIGH
EPSS
75.5%
top 1.10%
CISA KEV
Not in KEV
Exploit
Exploited in wild
Active exploitation observed
Affected products
4
Microsoft Windows 11 Version 21h2Microsoft Windows 11 Version 22h2Microsoft Windows Server 2022+1 more
Timeline
PublishedJan 10
Latest updateSep 20

Description

Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages4 packages

▶CVEListV5microsoft/windows_server_202210.0.20348.0 — 10.0.20348.1487
▶CVEListV5microsoft/windows_11_version_21h210.0.0 — 10.0.22000.1455
▶CVEListV5microsoft/windows_11_version_22h210.0.22621.0 — 10.0.22621.1105
▶NVDmicrosoft/windows_1121h2, 22h2+1

🔴Vulnerability Details

3
GHSA
GHSA-j69v-7pj3-vg67: Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability↗2023-01-11
▶
CVEList
Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability↗2023-01-10
▶
VulnCheck
Windows Ancillary Function Driver for WinSock Privilege Escalation↗2023
▶

📋Vendor Advisories

2
Red Hat
gstreamer-plugins-bad: Integer overflow in H.265 video parser leading to stack overwrite↗2023-09-20
▶
Microsoft
Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability↗2023-01-10
▶

🕵️Threat Intelligence

2
Sentinelone
CVE-2023-21768: Windows Local Privilege Escalation Vulnerability↗2023-03-20
▶
Sentinelone
CVE-2023-21768: Windows Local Privilege Escalation Vulnerability↗2023-03-20
▶