Microsoft SQL Server Vulnerability Allows Remote Privilege Escalation
First seen 15 Jan 2026, 04:59 UTC
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On January 13, 2026, Microsoft released security updates for a critical vulnerability in SQL Server, tracked as CVE-2026-20803. This flaw allows authorized attackers to bypass authentication controls and gain elevated privileges remotely due to missing authentication mechanisms in the database engine. Multiple SQL Server versions are affected by this vulnerability.
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