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KLA12224 Multiple vulnerabilities in Microsoft Exchange Server

Description

### *Detect date*: 07/13/2021 ### *Severity*: Critical ### *Description*: Multiple vulnerabilities were found in Microsoft Exchange Server. Malicious users can exploit these vulnerabilities to execute arbitrary code, gain privileges, obtain sensitive information. ### *Exploitation*: Public exploits exist for this vulnerability. ### *Affected products*: Microsoft Exchange Server 2019 Cumulative Update 10 Microsoft Exchange Server 2019 Cumulative Update 9 Microsoft Exchange Server 2013 Cumulative Update 23 Microsoft Exchange Server 2016 Cumulative Update 20 Microsoft Exchange Server 2019 Cumulative Update 8 Microsoft Exchange Server 2016 Cumulative Update 19 Microsoft Exchange Server 2016 Cumulative Update 21 ### *Solution*: Install necessary updates from the KB section, that are listed in your Windows Update (Windows Update usually can be accessed from the Control Panel) ### *Original advisories*: [CVE-2021-31196](<https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-31196>) [CVE-2021-34470](<https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-34470>) [CVE-2021-31206](<https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-31206>) [CVE-2021-34473](<https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-34473>) [CVE-2021-34523](<https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-34523>) [CVE-2021-33766](<https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-33766>) [CVE-2021-33768](<https://api.msrc.microsoft.com/sug/v2.0/en-US/vulnerability/CVE-2021-33768>) ### *Impacts*: ACE ### *Related products*: [Microsoft Exchange Server](<https://threats.kaspersky.com/en/product/Microsoft-Exchange-Server/>) ### *CVE-IDS*: [CVE-2021-31196](<https://vulners.com/cve/CVE-2021-31196>)6.5High [CVE-2021-34470](<https://vulners.com/cve/CVE-2021-34470>)5.2High [CVE-2021-31206](<https://vulners.com/cve/CVE-2021-31206>)7.9Critical [CVE-2021-34523](<https://vulners.com/cve/CVE-2021-34523>)7.5Critical [CVE-2021-33766](<https://vulners.com/cve/CVE-2021-33766>)5.0Warning [CVE-2021-33768](<https://vulners.com/cve/CVE-2021-33768>)5.2High ### *KB list*: [5001779](<http://support.microsoft.com/kb/5001779>) [5004780](<http://support.microsoft.com/kb/5004780>) [5004778](<http://support.microsoft.com/kb/5004778>) [5004779](<http://support.microsoft.com/kb/5004779>) [5003611](<http://support.microsoft.com/kb/5003611>) [5003612](<http://support.microsoft.com/kb/5003612>) ### *Microsoft official advisories*:


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