HIGH 8.8 Microsoft PoC
CVE-2021-42321
Microsoft Exchange Server Remote Code Execution Vulnerability
Microsoft Security Update 2021-Nov: Microsoft Exchange Server Remote Code Execution Vulnerability
Affected Products
- Microsoft Exchange Server 2016 Cumulative Update 21
- Microsoft Exchange Server 2019 Cumulative Update 10
- Microsoft Exchange Server 2016 Cumulative Update 22
- Microsoft Exchange Server 2019 Cumulative Update 11
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-42321
- https://nvd.nist.gov/vuln/detail/CVE-2021-42321
This high severity vulnerability with a CVSS score of 8.8 was published on 2021-11-09 via Microsoft. 🚨 A public proof-of-concept exploit is available on GitHub. EPSS score: 90.4% (top 0% of all CVEs by exploitation probability). Affected: Microsoft Exchange Server 2016 Cumulative Update 21, Microsoft Exchange Server 2019 Cumulative Update 10, Microsoft Exchange Server 2016 Cumulative Update 22 and 1 more.
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