SQL Server elevation-of-privilege flaw (CVE-2026-21262)
Vulnerability
Summary
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Microsoft patched CVE-2026-21262 in SQL Server, closing a publicly disclosed elevation-of-privilege flaw that can grant SQLAdmin privileges over the network. The vulnerability matters because an attacker with authorized access could raise privileges on affected servers. The fix is part of March 2026 Patch Tuesday and is available now.
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Timeline
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10.03.2026 19:49 2 articles · 2mo ago
Microsoft patches SQL Server CVE-2026-21262
Mitigation Patch UpdateMicrosoft patched CVE-2026-21262, a publicly disclosed SQL Server elevation-of-privilege vulnerability that can grant SQLAdmin privileges over a network. The fix addresses improper access control in SQL Server and is part of March 2026 Patch Tuesday.
Show sources
- Microsoft March 2026 Patch Tuesday fixes 2 zero-days, 79 flaws — www.bleepingcomputer.com — 10.03.2026 19:49
- Microsoft Fixes Two Publicly Disclosed Zero-Days — www.infosecurity-magazine.com — 11.03.2026 11:20