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CVE-2026-45503ImportantMonitor

Microsoft Exchange Server Information Disclosure Vulnerability

Severity Important  ·  Urgency Monitor

Why it matters: Important severity (CVSS 8.1)

Information Disclosure · Important · CVSS 8.1. Affects: Exchange Server.

CVSS 8.1EPSS 0.4%Security update published 2026-09-02Applies to On-premisesNVD

Affected: Exchange Server

Related changes

Change history

2026-09-02 · First captured by tracker

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