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Win32k Elevation of Privilege Vulnerability

🗓️ 13 Oct 2026 14:00:00Reported by MicrosoftType 
mscve
 mscve
🔗 msrc.microsoft.com👁 9 Views

Use after free in Windows Win32K allows an authorized attacker to elevate privileges locally.

Related
Detection
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-83721
14 Oct 202601:49
–circl
cve
CVE
CVE-2026-83721
13 Oct 202619:00
–cve
cvelist
Cvelist
CVE-2026-83721 Win32k Elevation of Privilege Vulnerability
13 Oct 202619:00
–cvelist
euvd
EUVD
EUVD-2026-99966
13 Oct 202619:00
–euvd
mskb
Microsoft KB
October 13, 2026—KB5126646 (OS Build 26100.33650)
13 Oct 202614:00
–mskb
mskb
Microsoft KB
October 13, 2026—KB5127646 (OS Build 28000.3231)
13 Oct 202614:00
–mskb
mskb
Microsoft KB
October 13, 2026—KB5127648 (OS Builds 26300.9711, 26200.9711 and 26100.9711)
13 Oct 202614:00
–mskb
nvd
NVD
CVE-2026-83721
13 Oct 202619:20
–nvd
ptsecurity
Positive Technologies
PT-2026-112524
13 Oct 202600:00
–ptsecurity
rapid7
Rapid7 Vulnerability Database (full)
CVE-2026-83721: Use After Free
13 Oct 202600:00
–rapid7
Rows per page
Vulners
Node
OR
microsoftwindows_11_25h2Range<10.0.26200.9711x64
microsoftwindows_11_24h2Range<10.0.26100.9711x64
microsoftwindows_11_26h1Range<10.0.28000.3231x64
microsoftwindows_11_26h1Range<10.0.28000.3231x64
microsoftwindows_11_24h2Range<10.0.26100.9711x64
microsoftwindows_server_2025Range<10.0.26100.33650
microsoftwindows_11_25h2Range<10.0.26200.9711x64
microsoftwindows_server_2025Range<10.0.26100.33650

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13 Oct 2026 14:00Current
6.4Medium risk
Vulners AI Score6.4
CVSS 3.17.8
EPSS0.00353
SSVC
9