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CVE-2026-83726

HighCVSS 7.8/10Last modified Oct 29, 2026

Description

Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

Vendor	Product	Versions
Microsoft	Windows 10 Version 1607	>= 10.0.14393.0, < 10.0.14393.9612
Microsoft	Windows 10 Version 1809	>= 10.0.17763.0, < 10.0.17763.9376
Microsoft	Windows 10 Version 21H2	>= 10.0.19044.0, < 10.0.19044.7807
Microsoft	Windows 10 Version 22H2	>= 10.0.19045.0, < 10.0.19045.7807
Microsoft	Windows 11 version 23H2	>= 10.0.22631.0, < 10.0.22631.7652
Microsoft	Windows 11 Version 23H2	>= 10.0.22631.0, < 10.0.22631.7652
Microsoft	Windows 11 Version 24H2	>= 10.0.26100.0, < 10.0.26100.9711
Microsoft	Windows 11 Version 25H2	>= 10.0.26200.0, < 10.0.26200.9711
Microsoft	Windows 11 version 26H1	>= 10.0.28000.0, < 10.0.28000.3231
Microsoft	Windows 11 Version 26H2	>= 10.0.26300.0, < 10.0.26300.9711
Microsoft	Windows Server 2016	>= 10.0.14393.0, < 10.0.14393.9612
Microsoft	Windows Server 2016 (Server Core installation)	>= 10.0.14393.0, < 10.0.14393.9612
Microsoft	Windows Server 2019	>= 10.0.17763.0, < 10.0.17763.9376
Microsoft	Windows Server 2019 (Server Core installation)	>= 10.0.17763.0, < 10.0.17763.9376
Microsoft	Windows Server 2022	>= 10.0.20348.0, < 10.0.20348.5761
Microsoft	Windows Server 2025	>= 10.0.26100.0, < 10.0.26100.33650
Microsoft	Windows Server 2025 (Server Core installation)	>= 10.0.26100.0, < 10.0.26100.33650

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83726Patch, Vendor Advisory

Timeline

Published: Oct 13, 2026
Last modified: Oct 29, 2026
NVD status: Analyzed

Related CVEs from 2026

CVE-2026-837277.8Buffer over-read in Windows Overlay Filter allows an authorized attacker to elevate privileges locally.CVE-2026-837288.8Improper validation of syntactic correctness of input in Windows Hyper-V allows an authorized attacker to perform spoofing locally.CVE-2026-837327.8Use after free in Windows Win32K allows an authorized attacker to elevate privileges locally.CVE-2026-837335.5Out-of-bounds read in Windows Print Spooler Components allows an authorized attacker to disclose information locally.CVE-2026-837357.8Release of invalid pointer or reference in Windows Kernel allows an authorized attacker to elevate privileges locally.CVE-2026-837365.5Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.CVE-2026-837375.5Out-of-bounds read in Windows NTFS allows an authorized attacker to disclose information locally.CVE-2026-837387.0Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.CVE-2026-837397.5Use after free in Windows Bluetooth Service allows an unauthorized attacker to execute code over an adjacent network.CVE-2026-83748.5Misuse and misconfiguration in Bluetooth communication in SwitchBot Door Lock Series allows an attacker to bypass the electronic lock and ac CVE-2026-837407.0Use after free in Windows Hello allows an authorized attacker to elevate privileges locally.CVE-2026-837417.8Use after free in Internet Explorer allows an authorized attacker to elevate privileges locally.

CVE-2026-83726: High severity, CVSS 7.8 | Vulnix