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CVE-2026-65796— Windows iSCSI Target Service Remote Code Execution Vulnerability

Quick assessment

Affected
Microsoft Windows 10 Version 1607
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是美国Microsoft公司的一款操作系统。 Microsoft Windows存在缓冲区错误漏洞，该漏洞源于堆缓冲区溢出，可能导致未经授权的攻击者通过网络发起拒绝服务攻击。

CVSS 8.1 · High EPSS 0.71% · P52

Affected Version Matrix 13

VendorProduct Version RangeStatus
Microsoft Windows 10 Version 1607 10.0.14393.0< 10.0.14393.9418 affected
Microsoft Windows 10 Version 1809 10.0.17763.0< 10.0.17763.9121 affected
Microsoft Windows Server 2012 6.2.9200.0< 6.2.9200.26280 affected
Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.0< 6.2.9200.26280 affected
Microsoft Windows Server 2012 R2 6.3.9600.0< 6.3.9600.23338 affected
Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.0< 6.3.9600.23338 affected
Microsoft Windows Server 2016 10.0.14393.0< 10.0.14393.9418 affected
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0< 10.0.14393.9418 affected
Microsoft Windows Server 2019 10.0.17763.0< 10.0.17763.9121 affected
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0< 10.0.17763.9121 affected
Microsoft Windows Server 2022 10.0.20348.0< 10.0.20348.5499 affected
Microsoft Windows Server 2025 10.0.26100.0< 10.0.26100.33296 affected
Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.0< 10.0.26100.33296 affected
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I. Basic Information for CVE-2026-65796

Vulnerability Information
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Vulnerability Title
Windows iSCSI Target Service Remote Code Execution Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Heap-based buffer overflow in Windows iSCSI Target Service allows an unauthorized attacker to execute code over a network.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
堆缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
Microsoft Windows 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Windows是美国Microsoft公司的一款操作系统。 Microsoft Windows存在缓冲区错误漏洞，该漏洞源于堆缓冲区溢出，可能导致未经授权的攻击者通过网络发起拒绝服务攻击。
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 10 Version 1607 10.0.14393.0 ~ 10.0.14393.9418 -
Microsoft Windows 10 Version 1809 10.0.17763.0 ~ 10.0.17763.9121 -
Microsoft Windows Server 2012 6.2.9200.0 ~ 6.2.9200.26280 -
Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.0 ~ 6.2.9200.26280 -
Microsoft Windows Server 2012 R2 6.3.9600.0 ~ 6.3.9600.23338 -
Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.0 ~ 6.3.9600.23338 -
Microsoft Windows Server 2016 10.0.14393.0 ~ 10.0.14393.9418 -
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0 ~ 10.0.14393.9418 -
Microsoft Windows Server 2019 10.0.17763.0 ~ 10.0.17763.9121 -
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0 ~ 10.0.17763.9121 -
Microsoft Windows Server 2022 10.0.20348.0 ~ 10.0.20348.5499 -
Microsoft Windows Server 2025 10.0.26100.0 ~ 10.0.26100.33296 -
Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.0 ~ 10.0.26100.33296 -

II. Public POCs for CVE-2026-65796

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III. Intelligence Information for CVE-2026-65796

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Vendor Advisories for CVE-2026-65796 (1)

Same Patch Batch · Microsoft · 2026-08-11 · 402 CVEs total

CVE-2026-59124 9.8 CRITICAL Microsoft High Performance Computing (HPC) Pack Remote Code Execution Vulnerability
CVE-2026-62815 9.8 CRITICAL Microsoft QUIC Remote Code Execution Vulnerability
CVE-2026-62878 9.8 CRITICAL Windows DNS Server Remote Code Execution Vulnerability
CVE-2026-62893 9.8 CRITICAL Windows Deployment Services TFTP Server Remote Code Execution Vulnerability
CVE-2026-65791 9.8 CRITICAL Windows iSCSI Target Service Remote Code Execution Vulnerability
CVE-2026-50516 9.4 CRITICAL Microsoft Azure Kubernetes Service Elevation of Privilege Vulnerability
CVE-2026-70306 9.3 CRITICAL Microsoft Office SharePoint Spoofing Vulnerability
CVE-2026-62785 8.8 HIGH Windows LDAP - Lightweight Directory Access Protocol Remote Code Execution Vulnerability
CVE-2026-62817 8.8 HIGH Windows DNS Server Remote Code Execution Vulnerability
CVE-2026-62795 8.8 HIGH Windows LDAP - Lightweight Directory Access Protocol Remote Code Execution Vulnerability
CVE-2026-70326 8.8 HIGH Microsoft SharePoint Server Elevation of Privilege Vulnerability
CVE-2026-62784 8.8 HIGH Microsoft Local Security Authority Server (lsasrv) Remote Code Execution Vulnerability
CVE-2026-62823 8.8 HIGH Windows DHCP Server Remote Code Execution Vulnerability
CVE-2026-62872 8.8 HIGH .NET Framework Elevation of Privilege Vulnerability
CVE-2026-62824 8.8 HIGH Remote Desktop Client Remote Code Execution Vulnerability
CVE-2026-62822 8.8 HIGH Windows GDI+ Remote Code Execution Vulnerability
CVE-2026-62800 8.8 HIGH Windows SMBv3 Server Remote Code Execution Vulnerability
CVE-2026-70337 8.8 HIGH Microsoft PowerShell Remote Code Execution Vulnerability
CVE-2026-62818 8.8 HIGH Windows Active Directory Certificate Services (AD CS) Remote Code Execution Vulnerability
CVE-2026-62790 8.8 HIGH Windows SMBv3 Server Remote Code Execution Vulnerability

Showing top 20 of 402 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Windows 10 Version 1607
Same vendor: Microsoft
Same weakness: CWE-122

V. Comments for CVE-2026-65796

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