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.
Other sources
Windows iSCSI Target Service Denial of Service Vulnerability
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.14393.9418Patch KB5120418 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.20348.5499Fixed in 10.0.20348.5440Patch KB5120229 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.33296Fixed in 10.0.26100.33222Patch KB5120228 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.17763.9115Patch KB5120238
Event History
Frequently Asked Questions
What is CVE-2026-65681?
CVE-2026-65681 is a high severity vulnerability in the Windows iSCSI Target Service that allows unauthorized attackers to perform a denial of service via null pointer dereference.
What is the severity of CVE-2026-65681?
The severity of CVE-2026-65681 is rated as high with a score of 7.5 on the CVSS scale.
How do I fix CVE-2026-65681?
To fix CVE-2026-65681, it is recommended to apply the latest security updates provided by Microsoft for affected Windows versions.
What versions of Windows are affected by CVE-2026-65681?
CVE-2026-65681 affects Microsoft Windows 10, Windows Server 2016, Windows Server 2019, Windows Server 2022, and Windows Server 2025.
What impact does CVE-2026-65681 have on my system?
CVE-2026-65681 can lead to a denial of service, rendering the affected Windows iSCSI Target Service unavailable to legitimate users.