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CVE-2021-34473

Description

Microsoft Exchange Server Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-31196, CVE-2021-31206. **Recent assessments:** **gwillcox-r7** at July 14, 2021 5:15pm UTC reported: From <https://blog.talosintelligence.com/2021/07/microsoft-patch-tuesday-for-july-2021.html> there was a note that this vulnerability seems to have been used in some Exchange Server APT attacks detailed at <https://blog.talosintelligence.com/2021/03/hafnium-update.html> however it wasn’t disclosed that this vulnerability was patched despite being patched back in April 2021. Since this was under active exploitation it is recommended to patch this vulnerability if you haven’t applied April 2021’s patch updates already. Successful exploitation will result in RCE on affected Exchange Servers, and requires no prior user privileges, so patch this soon! Assessed Attacker Value: 5 Assessed Attacker Value: 5Assessed Attacker Value: 3


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