High MSRC-CVE-2026-65681 1 CVE

Windows iSCSI Target Service Denial of Service Vulnerability

Published Aug 11, 2026 · Updated Aug 11, 2026

Vendor: Microsoft

Summary

Impact: Denial of Service. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.

Details

Security updates
10.0.17763.9121 — https://support.microsoft.com/help/5120238
10.0.20348.5499 — https://support.microsoft.com/help/5120242
10.0.20348.5440 — https://support.microsoft.com/help/5120229
10.0.26100.33296 — https://support.microsoft.com/help/5120233
10.0.26100.33222 — https://support.microsoft.com/help/5120228
10.0.14393.9418 — https://support.microsoft.com/help/5120418

Vulnerabilities 1

High 7.5

CVE-2026-65681

Windows iSCSI Target Service Denial of Service Vulnerability

Null pointer dereference in Windows iSCSI Target Service allows an unauthorized attacker to deny service over a network.

Microsoft Windows Server 2019 Windows Server 2019 (Server Core installation) Windows 10 Version 1809 Windows

Aug 11, 2026

Revision history

2026-08-11 #1
Information published.

References

CVE-2026-65681 Windows iSCSI Target Service Denial of Service Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-65681
Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
Common Vulnerability Scoring System
https://www.first.org/cvss