CVE-2021-26857: Microsoft Exchange Server Remote Code Execution Vulnerability
Microsoft Exchange Server contains an unspecified vulnerability that allows for remote code execution. This vulnerability is part of the ProxyLogon exploit chain.
Other sources
Microsoft Exchange Server Remote Code Execution Vulnerability
— NVD
Affected Software
Remediation
Event History
Peer vulnerabilities
Found alongside the following vulnerabilities.
Frequently Asked Questions
What is CVE-2021-26857?
CVE-2021-26857 is a vulnerability in Microsoft Exchange Server that allows for remote code execution.
How does CVE-2021-26857 affect Microsoft Exchange Server?
CVE-2021-26857 affects Microsoft Exchange Server by enabling remote code execution.
What is the severity of CVE-2021-26857?
CVE-2021-26857 is classified as critical severity.
How can I mitigate CVE-2021-26857?
To mitigate CVE-2021-26857, apply the security updates provided by Microsoft and follow their recommended guidance.
Where can I find more information about CVE-2021-26857?
For more information about CVE-2021-26857, you can refer to the official CISA website at https://www.cisa.gov/emergency-directive-21-02.