Heap-Based Buffer Overflow in Windows iSCSI Target Service
CVE-2026-65679

8.1HIGH

Key Information:

Vendor

Microsoft
Status
Windows 10 Version 1607
Windows 10 Version 1809
Windows Server 2012
Windows Server 2012 (server Core Installation)
Vendor
CVE Published:
11 August 2026

What is CVE-2026-65679?

A heap-based buffer overflow vulnerability has been identified in the Windows iSCSI Target Service. This security issue can potentially allow an unauthorized attacker to execute arbitrary code over a network, posing risks to system integrity and confidentiality. It is imperative for organizations to assess their systems for exposure and apply appropriate patches to mitigate this risk. Users should refer to the vendor advisory for further information and recommended actions.

Affected Version(s)

Windows 10 Version 1607 32-bit Systems 10.0.14393.0 < 10.0.14393.9418

Windows 10 Version 1809 32-bit Systems 10.0.17763.0 < 10.0.17763.9115

Windows Server 2012 (Server Core installation) x64-based Systems 6.2.9200.0 < 6.2.9200.26280

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisorypatch

CVSS V3.1

Score:
8.1
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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