Microsoft Monthly Security Update (October 2021)
Release Date:
15 Oct 2021
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RISK: High Risk
TYPE: Operating Systems - Windows OS
Microsoft has released monthly security update for their products:
| Vulnerable Product | Risk Level | Impacts | Notes |
| Exchange Server |  Medium Risk | Denial of Service Elevation of Privilege Spoofing Remote Code Execution | |
| Windows |  High Risk | Denial of Service Spoofing Elevation of Privilege Information Disclosure Security Restriction Bypass Remote Code Execution | Exploit in the wild |
| Extended Security Updates (ESU) | High Risk | Denial of Service Spoofing Elevation of Privilege Information Disclosure Security Restriction Bypass Remote Code Execution | Exploit in the wild |
| Microsoft Office | Medium Risk | Information Disclosure Remote Code Execution Spoofing | |
| Microsoft Dynamics |  Low Risk | Spoofing | |
| Developer Tools | Medium Risk | Information Disclosure Denial of Service | |
| System Center | Medium Risk | Information Disclosure | |
| Apps | Medium Risk | Security Restriction Bypass |
Number of 'Extremely High Risk' product(s): 0
Number of 'High Risk' product(s): 2
Number of 'Medium Risk' product(s): 5
Number of 'Low Risk' product(s): 1
Evaluation of overall 'Risk Level': High Risk
Impact
- Denial of Service
- Elevation of Privilege
- Spoofing
- Remote Code Execution
- Information Disclosure
- Security Restriction Bypass
System / Technologies affected
- Exchange Server
- Windows
- Extended Security Updates (ESU)
- Microsoft Office
- Microsoft Dynamics
- Developer Tools
- System Center
- Apps
Solutions
Before installation of the software, please visit the vendor web-site for more details.
- Apply fixes issued by the vendor.
Vulnerability Identifier
Source
Related Link
https://msrc.microsoft.com/update-guide/releaseNote/2021-Oct
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