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PROXYNOTFOUND VULNERABILITY CHECK TOOL

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VULNERABILITY INFORMATION

On April 13, Microsoft released a patch for 114 CVEs, including 04 CVEs about critical new vulnerabilities in the Microsoft Exchange email server: “CVE-2021-28480”, “CVE-2021-28481 "," CVE-2021-28482 "and" CVE-2021-28483 ". Among them, there are 02 vulnerabilities “CVE-2021-28480” , “CVE-2021-28481”, that the attacker can exploit without authentication (CVSS 9.8).

- After analyzing and researching, National Cyber Security Center of Vietnam (NCSC Vietnam) released a tool to assist organizations in checking these 04 vulnerabilities on Exchange mail system.

- The tool is used for users to self-check for vulnerabilities on their Microsoft Exchange Server. NCSC Vietnam is not responsible for the behavior of the individual's misuse.