CVSS 3.1 Score 9.8 of 10 (high)


Published Aug 8, 2023
Updated: May 29, 2024
CWE ID 307


CVE-2023-21709 is a critical vulnerability in Microsoft Exchange Server that allows for elevation of privilege. The vulnerability affects multiple products including bz_yT5, RxIKXl, bz_yT4, and U8qqSt. The risk score for this vulnerability is 71. The base severity is rated as critical with a score of 9.8. The attack vector is through the network and no user interaction or privileges are required. The impact of the vulnerability includes high integrity and confidentiality impacts, with an availability impact also being high. Remediation steps have not been provided in the information available. This vulnerability poses a significant danger to organizations using the affected Microsoft Exchange Server products as it could potentially be exploited by attackers to gain unauthorized access or control over the system, compromising data confidentiality and integrity.


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