Monthly Patch
January 2023 Monthly Patch
11 January 2023
Microsoft has released security patches to address multiple vulnerabilities in their software and products.
The vulnerabilities that have been classified as Critical in severity are listed in the table below.
For the full list of security patches released by Microsoft, please refer to
https://portal.msrc.microsoft.com/en-us/security-guidance/releasenotedetail/2023-Jan
Critical vulnerabilities
CVE Number | CVE Name | Base Score | Reference |
|---|---|---|---|
CVE-2023-21561 | Microsoft Cryptographic Services Elevation of Privilege Vulnerability | 8.8 | https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-21561 |
CVE-2023-21548 | Windows Secure Socket Tunneling Protocol (SSTP) Remote Code Execution Vulnerability | 8.1 | https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-21548 |
CVE-2023-21535 | Windows Secure Socket Tunneling Protocol (SSTP) Remote Code Execution Vulnerability | 8.1 | https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-21535 |
CVE-2023-21679 | Windows Layer 2 Tunneling Protocol (L2TP) Remote Code Execution Vulnerability | 8.1 | https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-21679 |
CVE-2023-21556 | Windows Layer 2 Tunneling Protocol (L2TP) Remote Code Execution Vulnerability | 8.1 | https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-21556 |
CVE-2023-21555 | Windows Layer 2 Tunneling Protocol (L2TP) Remote Code Execution Vulnerability | 8.1 | https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-21555 |
CVE-2023-21546 | Windows Layer 2 Tunneling Protocol (L2TP) Remote Code Execution Vulnerability | 8.1 | https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-21546 |
CVE-2023-21543 | Windows Layer 2 Tunneling Protocol (L2TP) Remote Code Execution Vulnerability | 8.1 | https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-21543 |
CVE-2023-21730 | Microsoft Cryptographic Services Elevation of Privilege Vulnerability | 7.8 | https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-21730 |
CVE-2023-21551 | Microsoft Cryptographic Services Elevation of Privilege Vulnerability | 7.8 | https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-21551 |
CVE-2023-21743 | Microsoft SharePoint Server Security Feature Bypass Vulnerability | 5.3 | https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-21743 |