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CVE-2026-70019— Windows Compressed Folder 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 Compressed Folder是美国Microsoft公司的一款可创建、浏览和解压ZIP压缩包的系统内置工具。 Microsoft Windows Compressed Folder存在后置链接漏洞，该漏洞源于Windows压缩文件夹中的硬链接处理不当，可能导致未经授权的攻击者通过网络泄露信息。

CVSS 6.5 · Medium EPSS 1.04% · P62

Possible ATT&CK Techniques 1 AI

T1567 · Exfiltration Over Web Service

Affected Version Matrix 7

VendorProduct Version RangeStatus
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-2026-70019

Vulnerability Information
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Vulnerability Title
Windows Compressed Folder Information Disclosure Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Windows hard link in Windows Compressed Folder allows an unauthorized attacker to disclose information over a network.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
Windows硬链接
Source: CVE Program / CVE List V5
Vulnerability Title
Microsoft Windows Compressed Folder 后置链接漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Windows Compressed Folder是美国Microsoft公司的一款可创建、浏览和解压ZIP压缩包的系统内置工具。 Microsoft Windows Compressed Folder存在后置链接漏洞，该漏洞源于Windows压缩文件夹中的硬链接处理不当，可能导致未经授权的攻击者通过网络泄露信息。
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 Subscribe
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-2026-70019

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III. Intelligence Information for CVE-2026-70019

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Vendor Advisories for CVE-2026-70019 (1)

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

CVE-2026-83941 9.9 CRITICAL Entra ID Elevation of Privilege Vulnerability
CVE-2026-77493 9.8 CRITICAL Windows Graphics Component Remote Code Execution Vulnerability
CVE-2026-69408 9.8 CRITICAL Microsoft Windows Media Foundation Remote Code Execution Vulnerability
CVE-2026-69431 9.8 CRITICAL Telnet Client Remote Code Execution Vulnerability
CVE-2026-69491 9.8 CRITICAL Microsoft DirectMusic Remote Code Execution Vulnerability
CVE-2026-69463 9.8 CRITICAL Windows NTFS Remote Code Execution Vulnerability
CVE-2026-69496 9.8 CRITICAL Windows Compressed Folder Remote Code Execution Vulnerability
CVE-2026-69525 9.8 CRITICAL Remote Desktop Services Remote Code Execution Vulnerability
CVE-2026-69819 9.8 CRITICAL RPC Runtime Library Remote Code Execution Vulnerability
CVE-2026-69730 9.8 CRITICAL Windows DNS Server Remote Code Execution Vulnerability
CVE-2026-69595 9.8 CRITICAL Windows Services for NFS ONCRPC XDR Driver Remote Code Execution Vulnerability
CVE-2026-78445 9.8 CRITICAL Windows Services for NFS ONCRPC XDR Driver Remote Code Execution Vulnerability
CVE-2026-73025 9.8 CRITICAL Windows iSCSI Security Feature Bypass Vulnerability
CVE-2026-73010 9.8 CRITICAL Microsoft Failover Cluster Remote Code Execution Vulnerability
CVE-2026-73009 9.8 CRITICAL Windows Secure Socket Tunneling Protocol (SSTP) Remote Code Execution Vulnerability
CVE-2026-72979 9.8 CRITICAL Windows DHCP Server Remote Code Execution Vulnerability
CVE-2026-72982 9.8 CRITICAL Windows Netlogon Remote Code Execution Vulnerability
CVE-2026-69579 9.8 CRITICAL Windows Message Queuing Remote Code Execution Vulnerability
CVE-2026-69824 9.8 CRITICAL Microsoft Standard XPS Remote Code Execution Vulnerability
CVE-2026-68839 9.8 CRITICAL Windows USB Mass Storage Class Driver Remote Code Execution Vulnerability

Showing top 20 of 966 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Windows 11 version 23H2
Same vendor: Microsoft
Same weakness: CWE-65

V. Comments for CVE-2026-70019

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