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Critical Zero-Day Vulnerability Disclosed in Microsoft SQL Server
First seen 11 Mar 2026, 05:11 UTC
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Microsoft has disclosed a critical zero-day vulnerability in SQL Server, tracked as CVE-2026-21262, which allows authenticated attackers to escalate their privileges to the highest administrative level on affected systems. The flaw was published on March 10, 2026, and poses a significant risk to organizations utilizing SQL Server in enterprise environments.
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Timeline
2026-03-10
CVE-2026-21262 published
2026-03-11
Microsoft publicly discloses the vulnerability