March 11, 2025
Proactive Defense: The Importance of Incident Response Planning in Cybersecurity
All You Need To Know About Supply Chain Attacks
November 9, 2021Rewterz Threat Advisory – Microsoft Excel security bypass Vulnerability
November 10, 2021All You Need To Know About Supply Chain Attacks
November 9, 2021Rewterz Threat Advisory – Microsoft Excel security bypass Vulnerability
November 10, 2021
Severity
High
Analysis Summary
CVE-2021-42321
Microsoft Exchange Server could allow a remote authenticated attacker to execute arbitrary code on the system. By sending a specially-crafted request, an attacker could exploit this vulnerability to execute arbitrary code on the system.
Impact
- Remote code execution
Affected Vendors
Microsoft
Affected Products
- Microsoft Exchange Server 2016 CU21
- Microsoft Exchange Server 2019 CU10
- Microsoft Exchange Server 2016 CU22
- Microsoft Exchange Server 2019 CU11
Remediation
Use Microsoft Automatic Update to apply the appropriate patch for your system, or the Microsoft Security Update Guide to search for available patches.