Zero-Day in Microsoft SQL Server Allows Attackers to Escalate Privileges

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Zero-Day in Microsoft SQL Server Allows Attackers to Escalate Privileges

Cyberpress • March 11, 2026

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This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

Critical Zero-Day Vulnerability Disclosed in Microsoft SQL Server 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. 4 sources 70

Extracted Entities

Attack Types (1)

Zero-day Exploit

MITRE ATT&CK (1)

T1068 - Exploitation for Privilege Escalation

Platforms (1)

Microsoft SQL Server