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Win32k Elevation of Privilege Vulnerability

🗓️ 13 Jan 2026 16:00:00Reported by MicrosoftType 
mscve
 mscve
🔗 msrc.microsoft.com👁 17 Views

Win32k use-after-free vulnerability allows local privilege elevation via ICOMP in Windows.

Related
Detection
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-20920
13 Jan 202617:56
–attackerkb
bdu_fstec
BDU FSTEC
Win32k.sys Privilege Escalation
15 Jan 202600:00
–bdu_fstec
circl
Circl
CVE-2026-20920
13 Jan 202618:01
–circl
cnnvd
CNNVD
Microsoft Win32k Resource Management Vulnerability
13 Jan 202600:00
–cnnvd
cve
CVE
CVE-2026-20920
13 Jan 202617:56
–cve
cvelist
Cvelist
CVE-2026-20920 Win32k Elevation of Privilege Vulnerability
13 Jan 202617:56
–cvelist
euvd
EUVD
EUVD-2026-2137
13 Jan 202617:56
–euvd
mskb
Microsoft KB
January 13, 2026—KB5073450 (OS Build 25398.2092)
13 Jan 202616:00
–mskb
mskb
Microsoft KB
January 13, 2026—KB5073455 (OS Build 22631.6491)
13 Jan 202616:00
–mskb
mskb
Microsoft KB
January 13, 2026—KB5073457 (OS Build 20348.4648)
13 Jan 202616:00
–mskb
Rows per page
Vulners
Node
OR
microsoftwindows_server_23h2Range<10.0.25398.2092
microsoftwindows_11_23h2Range<10.0.22631.6491x64
microsoftwindows_11_23h2Range<10.0.22631.6491x64
microsoftwindows_server_2022Range<10.0.20348.4648
microsoftwindows_server_2022Range<10.0.20348.4648

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13 Jan 2026 16:00Current
7.8High risk
Vulners AI Score7.8
CVSS 3.17.8
EPSS0.00493
SSVC
17