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CVE-2026-45501ImportantMonitor

Microsoft Exchange Server Spoofing Vulnerability

Severity Important  ·  Urgency Monitor

Why it matters: Important severity (CVSS 6.5)

Spoofing · Important · CVSS 6.5. Affects: Exchange Server.

CVSS 6.5EPSS 0.3%Security update published 2026-09-02Applies to On-premisesKB5103212NVD

Affected: Exchange Server

Related changes

Change history

2026-09-02 · First captured by tracker

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