CVE-2026-77486: Microsoft SQL Server Remote Code Execution Vulnerability
Published Sep 8, 2026
·Updated
Integer overflow or wraparound in SQL Server allows an unauthorized attacker to execute code over a network.
Other sources
Microsoft SQL Server Remote Code Execution Vulnerability
— Microsoft
Affected Software
8 affected componentsFixes available
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 2017<14.0.2130.4
14.0.2130.4
Microsoft SQL Server 2019<15.0.2190.7
15.0.2190.7
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
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
What level of access does an attacker need to exploit this issue?
The vulnerability is exploitable over a network with low attack complexity and requires no prior privileges. User interaction is required.
2
What is the potential impact if exploitation succeeds?
Successful exploitation could allow code execution and affect the confidentiality, integrity, and availability of the SQL Server system.
3
Which SQL Server releases are identified as affected?
The listed affected software includes Microsoft SQL Server 2017, SQL Server 2017 CU 31, SQL Server 2019, and SQL Server 2019 CU 32.