CVE-2021-26858 - Microsoft Exchange Server Remote Code Execution Vulnerability
CVE-2021-26858
Microsoft | Exchange Server
- Date Added:
- 2021-11-03
- Due Date:
- 2021-04-16
- Vulnerability Name
Microsoft Exchange Server Remote Code Execution Vulnerability
- Description
Microsoft Exchange Server contains an unspecified vulnerability that allows for remote code execution. This vulnerability is part of the ProxyLogon exploit chain.
- Known To Be Used in Ransomware Campaigns?
Known
- Action
Apply updates per vendor instructions.
- Additional Notes
- Reference CISA's ED 21-02 (https://www.cisa.gov/news-events/directives/ed-21-02-mitigate-microsoft-exchange-premises-product-vulnerabilities) for further guidance and requirements. Note: The due date for addressing this vulnerability aligns with the requirements outlined in ED 21-02. https://nvd.nist.gov/vuln/detail/CVE-2021-26858
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