CVE-2021-26855
CVSS 3.1 Score 9.8 of 10 (high)
Details
Published Mar 3, 2021
Updated: Feb 15, 2024
CWE ID 918
Summary
CVE-2021-26855 is a remote code execution vulnerability affecting Microsoft Exchange Servers. An attacker can exploit this flaw by sending a specially crafted email message to a victim, resulting in arbitrary code execution on the affected system. Successful exploitation allows the attacker to gain control of the targeted Exchange Server, potentially leading to data theft or further attacks. Microsoft released a patch to address this issue, and it is highly recommended that all Exchange Server administrators apply it promptly to secure their environments.
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Affected Products
- Microsoft Exchange Server
Affected Vendors
- Microsoft
Advisories, Assessments, and Mitigations
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