9 Zero-days fixed in July 2021 Patch Tuesday
Hello everyone,
July 2021 Patch Tuesday comes with fixes for 117 vulnerabilities, out of which 9 are zero-day vulnerabilities. All the zero-day patches are supported by Patch Manager Plus. The details of the zero-day vulnerabilities are as follows:
| CVE ID | Vulnerability | Publicly Disclosed | Actively Exploited |
| CVE-2021-34492 | Windows Certificate Spoofing Vulnerability | ✔ | ✗ |
| CVE-2021-34523 | Microsoft Exchange Server Elevation of Privilege Vulnerability | ✔ | ✗ |
| CVE-2021-34473 | Microsoft Exchange Server Remote Code Execution Vulnerability | ✔ | ✗ |
| CVE-2021-33779 | Windows ADFS Security Feature Bypass Vulnerability | ✔ | ✗ |
| CVE-2021-33781 | Active Directory Security Feature Bypass Vulnerability | ✔ | ✗ |
| CVE-2021-34527 | Windows Print Spooler Remote Code Execution Vulnerability | ✔ | ✔ |
| CVE-2021-33771 | Windows Kernel Elevation of Privilege Vulnerability | ✗ | ✔ |
| CVE-2021-34448 | Scripting Engine Memory Corruption Vulnerability | ✗ | ✔ |
| CVE-2021-31979 | Windows Kernel Elevation of Privilege Vulnerability | ✗ | ✔ |
CVE-2021-33771, CVE-2021-34448, and CVE-2021-31979, the patches to be deployed are as follows. Initiate a sync between the Patch Manager Plus server and the Central Patch Repository and deploy the relevant patches to your target systems.
For CVE-2021-33771
| Patch ID | Bulletin ID | Patch Description |
| 31703 | MS21-JUL2 | 2021-07 Security Only Quality Update for Windows Server 2012 R2 for x64-based Systems (KB5004285) |
| 31704 | MS21-JUL2 | 2021-07 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB5004285) |
| 31705 | MS21-JUL2 | 2021-07 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB5004285) |
| 31717 | MS21-JUL6 | 2021-07 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB5004298) |
| 31718 | MS21-JUL6 | 2021-07 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB5004298) |
| 31719 | MS21-JUL6 | 2021-07 Security Monthly Quality Rollup for Windows Server 2012 R2 for x64-based Systems (KB5004298) |
| 31735 | MS21-JUL3 | 2021-07 Cumulative Update for Windows Server 2019 for x64-based Systems (KB5004244) |
| 31736 | MS21-JUL3 | 2021-07 Cumulative Update for Windows 10 Version 1809 for x86-based Systems (KB5004244) |
| 31737 | MS21-JUL3 | 2021-07 Cumulative Update for Windows 10 Version 1809 for x64-based Systems (KB5004244) |
| 31738 | MS21-JUL3 | 2021-07 Cumulative Update for Windows 10 Version 2004 for x86-based Systems (KB5004237) |
| 31740 | MS21-JUL3 | 2021-07 Cumulative Update for Windows Server, version 2004 for x64-based Systems (KB5004237) |
| 31741 | MS21-JUL3 | 2021-07 Cumulative Update for Windows 10 Version 2004 for x64-based Systems (KB5004237) |
| 31742 | MS21-JUL3 | 2021-07 Cumulative Update for Windows 10 Version 20H2 for x64-based Systems (KB5004237) |
| 31743 | MS21-JUL3 | 2021-07 Cumulative Update for Windows 10 Version 20H2 for x86-based Systems (KB5004237) |
| 31744 | MS21-JUL3 | 2021-07 Cumulative Update for Windows 10 Version 21H1 for x86-based Systems (KB5004237) |
| 31745 | MS21-JUL3 | 2021-07 Cumulative Update for Windows 10 Version 21H1 for x64-based Systems (KB5004237) |
| 31746 | MS21-JUL3 | 2021-07 Cumulative Update for Windows 10 Version 1909 for x64-based Systems (KB5004245) |
| 31747 | MS21-JUL3 | 2021-07 Cumulative Update for Windows 10 Version 1909 for x86-based Systems (KB5004245) |
| 31748 | MS21-JUL3 | 2021-07 Cumulative Update for Windows 10 Version 1607 for x86-based Systems (KB5004238) |
| 31749 | MS21-JUL3 | 2021-07 Cumulative Update for Windows 10 Version 1607 for x64-based Systems (KB5004238) |
| 31750 | MS21-JUL3 | 2021-07 Cumulative Update for Windows Server 2016 for x64-based Systems (KB5004238) |
| 31751 | MS21-JUL3 | 2021-07 Cumulative Update for Windows 10 Version 1507 for x64-based Systems (KB5004249) |
| 31752 | MS21-JUL3 | 2021-07 Cumulative Update for Windows 10 Version 1507 for x86-based Systems (KB5004249) |
For CVE-2021-34448 and CVE-2021-31979, refer to this post
Cheers,
The ManageEngine Team