cve 2026 55009

  1. CVE-2026-55009: Patch Exchange Privilege Escalation by July 14

    CVE-2026-55009 affects Microsoft Exchange Server 2016 CU23, Exchange Server 2019 CU14 and CU15, and Exchange Server Subscription Edition RTM, allowing an authenticated attacker to elevate privileges through unsafe deserialization. Microsoft addressed the flaw in security updates released on July...
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    • Forum: Security Alerts