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Vulnerabilities & PatchesEmerging1 sourceOct 5, 2026 · 16:21via The Hacker News

Microsoft Exchange Flaw Lets Authenticated Attackers Read Other Users' Mailboxes

Brief

Microsoft has released out-of-band security updates to address a high-severity flaw in Microsoft Exchange Server that could allow an attacker to escalate privileges under certain conditions.

The vulnerability, tracked as CVE-2026-96940, is rated 8.8 on the CVSS scoring system.

"Weak authorization in Microsoft Exchange Server allows an authenticated attacker to elevate privileges over a

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