Vulnerability Details CVE-2026-54998
Incorrect authorization in Microsoft Exchange Online allows an authorized attacker to elevate privileges over a network.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.008
EPSS Ranking 53.8%
CVSS Severity
CVSS v3 Score 8.8
Products affected by CVE-2026-54998
-
cpe:2.3:a:microsoft:exchange_online:-