CVE-2023-21819HighCVSS 7.5
Windows Secure Channel Denial of Service Vulnerability
🔗 CVE IDs covered (1)
🎯 Affected products17
- Windows 10 Version 1809 for 32-bit Systems
- Windows 10 Version 1809 for ARM64-based Systems
- Windows 10 Version 1809 for x64-based Systems
- Windows 10 Version 20H2 for 32-bit Systems
- Windows 10 Version 20H2 for ARM64-based Systems
- Windows 10 Version 21H2 for 32-bit Systems
- Windows 10 Version 21H2 for ARM64-based Systems
- Windows 10 Version 21H2 for x64-based Systems
- Windows 10 Version 22H2 for 32-bit Systems
- Windows 10 Version 22H2 for ARM64-based Systems
- Windows 10 Version 22H2 for x64-based Systems
- Windows 11 version 21H2 for ARM64-based Systems
- Windows 11 version 21H2 for x64-based Systems
- Windows Server 2019
- Windows Server 2019 (Server Core installation)
- Windows Server 2022
- Windows Server 2022 (Server Core installation)
✅ Remediation
KB5022840 (Security Update) — fixed build 10.0.17763.4010 KB5022842 (Security Update) — fixed build 10.0.20348.1547 KB5022921 (Security Hotpatch Update) — fixed build 10.0.20348.1540 KB5022834 (Security Update) — fixed build 10.0.19042.2604 KB5022836 (Security Update) — fixed build 10.0.22621.1574 KB5022834 (Security Update) — fixed build 10.0.19044.2604 KB5022834 (Security Update) — fixed build 10.0.19045.2604
🔗 References (10)
- advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21819
- patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5022840
- referencehttps://support.microsoft.com/help/5022840
- patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5022842
- referencehttps://support.microsoft.com/help/5022842
- referencehttps://support.microsoft.com/help/5022921
- patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5022834
- referencehttps://support.microsoft.com/help/5022834
- patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5022836
- referencehttps://support.microsoft.com/help/5022836