CVE-2026-85802

HighCVSS 7.0/10Last modified Oct 16, 2026

Description

Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.

Metrics

CVSS 3.1 7.0/10CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-416

Affected software

VendorProductVersions
MicrosoftWindows 10 Version 1607>= 10.0.14393.0, < 10.0.14393.9612
MicrosoftWindows 10 Version 1809>= 10.0.17763.0, < 10.0.17763.9376
MicrosoftWindows 10 Version 21H2>= 10.0.19044.0, < 10.0.19044.7807
MicrosoftWindows 10 Version 22H2>= 10.0.19045.0, < 10.0.19045.7807
MicrosoftWindows 11 version 23H2>= 10.0.22631.0, < 10.0.22631.7652
MicrosoftWindows 11 Version 23H2>= 10.0.22631.0, < 10.0.22631.7652
MicrosoftWindows 11 Version 24H2>= 10.0.26100.0, < 10.0.26100.9711
MicrosoftWindows 11 Version 25H2>= 10.0.26200.0, < 10.0.26200.9711
MicrosoftWindows 11 version 26H1>= 10.0.28000.0, < 10.0.28000.3231
MicrosoftWindows 11 Version 26H2>= 10.0.26300.0, < 10.0.26300.9711
MicrosoftWindows Server 2012>= 6.2.9200.0, < 6.2.9200.26434
MicrosoftWindows Server 2012 (Server Core installation)>= 6.2.9200.0, < 6.2.9200.26434
MicrosoftWindows Server 2012 R2>= 6.3.9600.0, < 6.3.9600.23470
MicrosoftWindows Server 2012 R2 (Server Core installation)>= 6.3.9600.0, < 6.3.9600.23470
MicrosoftWindows Server 2016>= 10.0.14393.0, < 10.0.14393.9612
MicrosoftWindows Server 2016 (Server Core installation)>= 10.0.14393.0, < 10.0.14393.9612
MicrosoftWindows Server 2019>= 10.0.17763.0, < 10.0.17763.9376
MicrosoftWindows Server 2019 (Server Core installation)>= 10.0.17763.0, < 10.0.17763.9376
MicrosoftWindows Server 2022>= 10.0.20348.0, < 10.0.20348.5761
MicrosoftWindows Server 2025>= 10.0.26100.0, < 10.0.26100.33650
MicrosoftWindows Server 2025 (Server Core installation)>= 10.0.26100.0, < 10.0.26100.33650

References

Timeline

Published
Oct 13, 2026
Last modified
Oct 16, 2026
NVD status
Analyzed

Related CVEs from 2026

CVE-2026-858037.0Use after free in Windows Camera Frame Server Monitor allows an authorized attacker to elevate privileges locally.CVE-2026-858047.8Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.CVE-2026-858056.5Improperly implemented security check for standard in Windows PowerShell allows an unauthorized attacker to bypass a security feature over aCVE-2026-858069.8Integer underflow (wrap or wraparound) in Network Policy Server (NPS) allows an unauthorized attacker to execute code over a network.CVE-2026-858077.8Integer overflow or wraparound in Windows USB Video Driver allows an authorized attacker to elevate privileges locally.CVE-2026-858087.5Out-of-bounds read in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to deny service over a network.CVE-2026-858099.8Remote Code Execution in Windows Routing and Remote Access Service (RRAS) allows attacker to gain an unauthorized access to victim's machineCVE-2026-85818.8Use after free in GPU in Google Chrome prior to 148.0.7778.168 allowed a remote attacker to execute arbitrary code inside a sandbox via a crCVE-2026-858107.0Use after free in Windows Telephony Server allows an authorized attacker to elevate privileges locally.CVE-2026-858117.5Use after free in Network Policy Server (NPS) allows an unauthorized attacker to execute code over an adjacent network.CVE-2026-858125.5Files or directories accessible to external parties in Windows Bind Filter Driver allows an authorized attacker to disclose information locaCVE-2026-858149.8Heap-based buffer overflow in Microsoft Windows Media Foundation allows an unauthorized attacker to execute code over a network.
CVE-2026-85802: High severity, CVSS 7.0 | Vulnix