CVE-2026-77480: SQL Server Elevation of Privilege Vulnerability
Published Sep 8, 2026
·Updated
Insufficient granularity of access control in SQL Server allows an authorized attacker to elevate privileges over a network.
Other sources
SQL Server Elevation of Privilege Vulnerability
— Microsoft
Affected Software
16 affected componentsFixes available
Microsoft SQL Server 2025<17.0.1135.8
17.0.1135.8
Microsoft SQL Server 2025 (CU8)<17.0.4085.5
17.0.4085.5
Microsoft SQL Server 2019 (CU 32)<15.0.4490.9
15.0.4490.9
Microsoft SQL Server 2017 (CU 31)<14.0.3550.4
14.0.3550.4
Microsoft SQL Server 2022 (CU 26)<16.0.4275.2
16.0.4275.2
Microsoft SQL Server 2019<15.0.2190.7
15.0.2190.7
Microsoft SQL Server 2017<14.0.2130.4
14.0.2130.4
Microsoft SQL Server 2022<16.0.1200.5
16.0.1200.5
Microsoft SQL Server 2017<14.0.2130.4
Microsoft SQL Server 2017>=14.0.3006.16<14.0.3550.4
Microsoft SQL Server 2019<15.0.2190.7
Microsoft SQL Server 2019>=15.0.4003.23<15.0.4490.9
Microsoft SQL Server 2022<16.0.1200.5
Microsoft SQL Server 2022>=16.0.4003.1<16.0.4275.2
Microsoft SQL Server 2025<17.0.1135.8
Microsoft SQL Server 2025>=17.0.4006.2<17.0.4085.5
Remediation
Event History
Sep 8, 2026
CVE Published
via Microsoft·02:00 PM
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeaknessAffected Software
CVE Published
via MITRE·05:18 PM
Data Sourced
via MITRE·05:18 PM
DescriptionSeverity
Data Sourced
via NVD·06:20 PM
RemedyDescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
Which SQL Server deployments are identified as affected?
The listed affected products are Microsoft SQL Server 2017, 2019, 2022, and 2025. The data specifically includes SQL Server 2017 CU 31, SQL Server 2019 CU 32, SQL Server 2022 CU 26, and SQL Server 2025 CU8.
2
Does exploitation require an unauthenticated attacker or user interaction?
The attacker must be authorized, so exploitation requires existing privileges. The vector is network-based, requires low attack complexity, and does not require user interaction.
3
What is the potential impact if exploited?
An authorized attacker could elevate privileges. The supplied scoring indicates high impacts to confidentiality, integrity, and availability.