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CVE-2026-83501— Windows Virtualization-Based Security (VBS) Information Disclosure Vulnerability

Quick assessment

Affected

Microsoft Windows 11 version 23H2

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Microsoft Windows Virtualization-Based Security是美国Microsoft公司的一款利用硬件虚拟化创建隔离执行环境以保护操作系统核心和敏感数据的安全功能。 Microsoft Windows Virtualization-Based Security存在缓冲区错误漏洞，该漏洞源于Windows虚拟化安全(VBS)飞地存在越界读取，可能导致授权攻击者在本地披露信息。

CVSS 5.5 · Medium EPSS 0.40% · P34 Updated Oct 15, 2026

Possible ATT&CK Techniques 3 AI

T1059 · Command and Scripting Interpreter T1104 · Multi-Stage Channels T1012 · Query Registry

Affected Version Matrix 7

Vendor	Product	Version Range	Status
Microsoft	Windows 11 version 23H2	`10.0.22631.0< 10.0.22631.7582`	affected
Microsoft	Windows 11 Version 23H2	`10.0.22631.0< 10.0.22631.7582`	affected
Microsoft	Windows 11 Version 24H2	`10.0.26100.0< 10.0.26100.9445`	affected
Microsoft	Windows 11 Version 25H2	`10.0.26200.0< 10.0.26200.9445`	affected
Microsoft	Windows 11 version 26H1	`10.0.28000.0< 10.0.28000.2954`	affected
Microsoft	Windows Server 2025	`10.0.26100.0< 10.0.26100.33438`	affected
Microsoft	Windows Server 2025 (Server Core installation)	`10.0.26100.0< 10.0.26100.33438`	affected

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I. Basic Information for CVE-2026-83501

Vulnerability Information

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Vulnerability Title

Windows Virtualization-Based Security (VBS) Information Disclosure Vulnerability

Source: CVE Program / CVE List V5

Vulnerability Description

Out-of-bounds read in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to disclose information locally.

Source: CVE Program / CVE List V5

CVSS Information

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

Source: CVE Program / CVE List V5

Vulnerability Type

跨界内存读

Source: CVE Program / CVE List V5

Vulnerability Title

Microsoft Windows Virtualization-Based Security 缓冲区错误漏洞

Source: CNNVD (China National Vulnerability Database)

Vulnerability Description

Source: CNNVD (China National Vulnerability Database)

CVSS Information

N/A

Source: CNNVD (China National Vulnerability Database)

Vulnerability Type

N/A

Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor	Product	Affected Versions	CPE
Microsoft	Windows 11 version 23H2	10.0.22631.0 ~ 10.0.22631.7582	-
Microsoft	Windows 11 Version 23H2	10.0.22631.0 ~ 10.0.22631.7582	-
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	-

II. Public POCs for CVE-2026-83501

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2026-83501

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Vendor Advisories for CVE-2026-83501 (1)

🔗 CVE-2026-83501 - Security Update Guide - Microsoft - Windows Virtualization-Based Security (VBS) Information Disclosure Vulnerability vendor-advisory patch

https://www.cve.org/CVERecord?id=CVE-2026-83501

Same Patch Batch · Microsoft · 2026-09-08 · 966 CVEs total

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CVE-2026-69463	9.8 CRITICAL	Windows NTFS Remote Code Execution Vulnerability
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CVE-2026-69525	9.8 CRITICAL	Remote Desktop Services Remote Code Execution Vulnerability
CVE-2026-70296	9.8 CRITICAL	Windows Imaging Component Remote Code Execution Vulnerability
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Showing top 20 of 966 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Windows 11 version 23H2

Same vendor: Microsoft

Same weakness: CWE-125