CVE-2021-1636: Microsoft SQL Elevation of Privilege Vulnerability
This Microsoft advisory covers CVE-2021-1636 in Microsoft SQL Server 2012 Service Pack 4 (QFE), Microsoft SQL Server 2012 for x64-based Systems Service Pack 4 (QFE) and Microsoft SQL Server 2017 (GDR).
- CVE-2021-1636
Key facts
- Vendor rating
- High, CVSS 8.8
- CISA KEV
- Not listed (catalogue checked )
- Affected
- Microsoft SQL Server 2012 Service Pack 4 (QFE) 11.0.0 before publication; Microsoft SQL Server 2012 for x64-based Systems Service Pack 4 (QFE) 11.0.0 before publication; Microsoft SQL Server 2017 (GDR) 14.0.0 before publication and 7 more below
- Fixed in
- publication
- Source published
- Source revised
- Listed by VulniPulse
Compiled by VulniPulse from the linked sources. How records are collected and checked.
Affected products & platforms
Description
Microsoft SQL Elevation of Privilege Vulnerability
Affected products named by the advisory: Microsoft SQL Server 2012 Service Pack 4 (QFE); Microsoft SQL Server 2012 for x64-based Systems Service Pack 4 (QFE); Microsoft SQL Server 2017 (GDR); Microsoft SQL Server 2014 Service Pack 3 (GDR); and 6 more.
Affected products named by the advisory: Microsoft SQL Server 2016 for x64-based Systems Service Pack 2 (GDR); Microsoft SQL Server 2014 Service Pack 3 (CU 4); Microsoft SQL Server 2017 (CU 22); Microsoft SQL Server 2016 Service Pack 2 (CU 15); and 2 more.
Text from the source record.
- Microsoft SQL Server 2012 Service Pack 4 (QFE) 11.0.0 before publication
- Microsoft SQL Server 2012 for x64-based Systems Service Pack 4 (QFE) 11.0.0 before publication
- Microsoft SQL Server 2017 (GDR) 14.0.0 before publication
- Microsoft SQL Server 2014 Service Pack 3 (GDR) 12.0.0 before publication
- Microsoft SQL Server 2016 for x64-based Systems Service Pack 2 (GDR) 13.0.0 before publication
- Microsoft SQL Server 2014 Service Pack 3 (CU 4) 12.0.0 before publication
- Microsoft SQL Server 2017 (CU 22) 14.0.0 before publication
- Microsoft SQL Server 2016 Service Pack 2 (CU 15) 13.0.0 before publication
- Microsoft SQL Server 2019 (CU 8) 16.0.0 before publication
- Microsoft SQL Server 2019 (GDR) 15.0.0 before publication
Official advisory · high-confidence parse· fetched ·verify at source
How to fix CVE-2021-1636
Upgrade to a fixed release named by Microsoft:
- publication
End-of-life dates for Microsoft SQL Server
More Microsoft Server advisories
CVE-2026-120000Nov 10, 2026Microsoft Office SharePoint Remote Code Execution VulnerabilityCVE-2026-124210Nov 10, 2026Microsoft Office SharePoint Information Disclosure VulnerabilityCVE-2026-123391Nov 10, 2026Microsoft Office SharePoint Elevation of Privilege VulnerabilityCVE-2026-123390Nov 10, 2026Microsoft Office SharePoint Remote Code Execution VulnerabilityCVE-2026-112736Nov 10, 2026Microsoft Office SharePoint Spoofing VulnerabilityCVE-2026-111303Nov 10, 2026Microsoft Office SharePoint Spoofing Vulnerability
Microsoft Server advisories, January 2021All Microsoft Server advisories
Get an email when Microsoft SQL Server publishes the next one.
See Microsoft SQL Server's last 90 days of advisories first. Then choose one product with live alerts free for life, or a free month of real-time alerts on everything with the severity, the fixed version and the vendor's link (card needed, then US$15/month; we email you before the first charge).
iPhone and Android apps · New on the App Store
Monitor future Microsoft Server CVEs from your phone.
Choose a whole vendor or a precise platform, then receive matching security advisories by phone notification, email, or both. Coverage follows 34 official vendor sources and 160+ reviewed platform categories.