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Vulnerability DatabaseCVE-2021-28483
CVE-2021-28483:
vulnerability analysis and mitigation
Overview
Microsoft Exchange Server Remote Code Execution Vulnerability (CVE-2021-28483) was disclosed in April 2021 as part of Microsoft's April 2021 Patch Tuesday release. This vulnerability was discovered and reported by the National Security Agency (NSA) along with three other Exchange Server vulnerabilities (Tenable Blog).
Technical details
CVE-2021-28483 is a Remote Code Execution (RCE) vulnerability affecting Microsoft Exchange Server. The vulnerability was assigned a Critical severity rating. This was one of four Exchange Server vulnerabilities (alongside CVE-2021-28480, CVE-2021-28481, and CVE-2021-28482) that were addressed in the April 2021 security updates (Tenable Blog).
Impact
If successfully exploited, this vulnerability could allow an attacker to execute arbitrary code on affected Microsoft Exchange Server installations. Given the critical nature of Exchange Server in enterprise environments, successful exploitation could lead to significant compromise of affected systems (Tenable Blog).
Mitigation and workarounds
Microsoft released security updates to address this vulnerability as part of the April 2021 Patch Tuesday updates. Administrators were advised to prioritize patching Exchange Server vulnerabilities given their critical nature and the history of active exploitation of Exchange vulnerabilities (Tenable Blog).
Additional resources
Source: This report was generated using AI
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