CVE-2026-40372: Critical ASP.NET Core Flaw May Let Attackers Gain SYSTEM Privileges

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Microsoft has released out-of-band updates for CVE-2026-40372, a high-impact ASP.NET Core privilege-escalation vulnerability tied to the platform’s Data Protection cryptographic APIs. Public reporting says the flaw carries a CVSS score of 9.1 and could allow an unauthenticated attacker to forge authentication material and ultimately obtain SYSTEM privileges on affected systems. The issue stands out not […]

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