Search/CVE-2023-21688
● CVE — High

CVE-2023-21688

VendormicrosoftProductwindows server 2008, windows 10 1507, windows server 2012, windows 10 1607, windows 10 1809, windows 10 21h2, windows 10 22h2, windows server 2016, windows server 2019, windows server 2022, windows 11 21h2, windows 10 20h2, windows 11 22h2DiscoveredFeb 14, 2023UpdatedAug 19, 2026

NT OS Kernel Elevation of Privilege Vulnerability

View graph Watch Export
CVSS v3.1
7.8 HIGH
EPSS
3.63%
probability of exploitation in 30 days
CISA KEV
Not listed
no confirmed exploitation reported
News coverage
0
sources referencing this CVE
Related IOCs
0
seen in the same coverage
EPSS Trend
Aug 16, 2026 → Oct 22, 2026
▲ 0.03pp
3.60% → 3.63% over 2 tracked changes
CVSS v3.1 Detail
Attack VectorLOCAL
Attack ComplexityLOW
Privileges RequiredLOW
User InteractionNONE
ScopeUNCHANGED
ConfidentialityHIGH
IntegrityHIGH
AvailabilityHIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Connections
14 relationships
Timeline
disclosure → media coverage
Feb 14, 2023
Disclosure — published as a CVE record. · last revised by NVD Aug 19, 2026
Public PoC (1)
github.com/hyunjungg/CVE-2023-21688
Unverified third-party code — review before executing.