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Microsoft urges Exchange admins to patch bug exploited in the wild
Malware and Vulnerabilities
November 10, 2021
Bleeping Computer
The security flaw tracked as CVE-2021-42321 impacts Exchange Server 2016 and Exchange Server 2019, and it is caused by improper validation of cmdlet arguments according to the security advisory.
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Microsoft Exchange Server 2016
Microsoft Exchange Server 2019
Remote Code Execution
improper validation
post-authentication vulnerability
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