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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 0.5%Update published 2026-06-23Source updated 2026-06-23NVD

Affected: Exchange Server

Change history

2026-06-23 · First seen

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