HIGHCVSS 7.8
CVE-2026-55009
CVE-2026-55009 updated by NVD
Summary
Deserialization of untrusted data in Microsoft Exchange Server allows an authorized attacker to elevate privileges locally.
References
Includes data from the National Vulnerability Database (NIST). NVD data is in the public domain; this page is not endorsed by NIST.
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