CVE-2023-21811: Windows iSCSI Service Denial of Service Vulnerability
Windows iSCSI Service Denial of Service Vulnerability
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 6.3.9600.20821Patch KB5022894 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.2.9200.24116Patch KB5022895 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.1.7601.26366Patch KB5022874 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.0.6003.21915Patch KB5022893 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.14393.5717Patch KB5022838 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.10240.19747Patch KB5022858 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.22621.1265Patch KB5022845 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.19045.2604Patch KB5022834 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.19044.2604Patch KB5022834 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.22621.1574Patch KB5022836 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.19042.2604Patch KB5022834 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.20348.1547Fixed in 10.0.20348.1540Patch KB5022921 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.17763.4010Patch KB5022840
Event History
Frequently Asked Questions
What is the severity of CVE-2023-21811?
CVE-2023-21811 is rated as a Denial of Service vulnerability affecting the Windows iSCSI Service.
How do I fix CVE-2023-21811?
To resolve CVE-2023-21811, you should apply the latest security patches provided by Microsoft for affected Windows Server and client versions.
Which products are affected by CVE-2023-21811?
CVE-2023-21811 affects various versions of Windows Server including 2008, 2012, 2016, 2019, and 2022, as well as Windows 10 and 11.
What are the potential impacts of CVE-2023-21811?
Exploitation of CVE-2023-21811 could lead to a denial of service, rendering the affected system unavailable.
Is there a workaround for CVE-2023-21811 until a fix is applied?
Currently, it is recommended to immediately apply the security patches as there are no known workarounds for CVE-2023-21811.