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CVE-2026-83706

MediumCVSS 6.7/10Last modified Oct 29, 2026

Description

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

Metrics

CVSS 3.1 6.7/10CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

Vendor	Product	Versions
Microsoft	Windows 11 Version 24H2	>= 10.0.26100.0, < 10.0.26100.9445
Microsoft	Windows 11 Version 25H2	>= 10.0.26200.0, < 10.0.26200.9445
Microsoft	Windows 11 version 26H1	>= 10.0.28000.0, < 10.0.28000.2954
Microsoft	Windows Server 2025	>= 10.0.26100.0, < 10.0.26100.33438
Microsoft	Windows Server 2025 (Server Core installation)	>= 10.0.26100.0, < 10.0.26100.33438

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83706Patch, Vendor Advisory

Timeline

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

Related CVEs from 2026

CVE-2026-837077.0Use after free in Windows Event Tracing allows an authorized attacker to elevate privileges locally.CVE-2026-837087.0Stack-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally.CVE-2026-837097.8Heap-based buffer overflow in Windows NTLM allows an authorized attacker to elevate privileges locally.CVE-2026-837107.0Use after free in Windows Device Association Service allows an authorized attacker to elevate privileges locally.CVE-2026-8371110.0Authorization bypass through user-controlled key in Microsoft Azure Active Directory B2C allows an unauthorized attacker to elevate privileg CVE-2026-837127.8Out-of-bounds write in Windows NTFS allows an authorized attacker to execute code locally.CVE-2026-837135.5Out-of-bounds read in Windows Universal Disk Format File System Driver (UDFS) allows an authorized attacker to disclose information locally.CVE-2026-837145.5Use of uninitialized resource in Windows HTTP.sys allows an authorized attacker to disclose information locally.CVE-2026-837157.1Missing authentication for critical function in Windows Error Reporting allows an authorized attacker to perform tampering locally.CVE-2026-837168.8Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to execute code locally.CVE-2026-837177.0Use after free in Windows Installer allows an authorized attacker to elevate privileges locally.CVE-2026-837187.0Use after free in Windows Installer allows an authorized attacker to elevate privileges locally.

CVE-2026-83706: Medium severity, CVSS 6.7 | Vulnix