CVE-2026-65674: Microsoft SQL Server Remote Code Execution Vulnerability
Published Oct 13, 2026
·Updated
Deserialization of untrusted data in SQL Server allows an authorized attacker to execute code over a network.
Other sources
Microsoft SQL Server Remote Code Execution Vulnerability
— Microsoft
Affected Software
20 affected componentsFixes available
Microsoft SQL Server 2025<17.0.1145.4
17.0.1145.4
Microsoft SQL Server 2019<15.0.2200.2
15.0.2200.2
Microsoft SQL Server 2022<16.0.1210.3
16.0.1210.3
Microsoft SQL Server 2025<17.0.5015.4
17.0.5015.4
Microsoft SQL Server 2022<16.0.4305.5
16.0.4305.5
Microsoft SQL Server 2019<15.0.4500.2
15.0.4500.2
Microsoft SQL Server 2025>=17.0.4006.2<=17.0.5005.3
17.0.5015.4
Microsoft SQL Server 2025>=17.0.1000.7<=17.0.1135.8
17.0.1145.4
Microsoft SQL Server 2022>=16.0.4003.1<=16.0.4295.3
16.0.4305.5
Microsoft SQL Server 2022>=16.0.1000.6<=16.0.1200.5
16.0.1210.3
Microsoft SQL Server 2019>=15.0.4003.23<=15.0.4490.9
15.0.4500.2
Microsoft SQL Server 2019>=15.0.2000.5<=15.0.2190.7
15.0.2200.2
Microsoft SQL Server 2017>=14.0.3006.16<=14.0.3550.4
14.0.3560.2
Microsoft SQL Server 2017>=14.0.1000.169<=14.0.2130.4
14.0.2140.2
Microsoft SQL Server 2019>=15.0.2000.5<15.0.2200.2
Microsoft SQL Server 2019>=15.0.4003.23<15.0.4500.2
Microsoft SQL Server 2022>=16.0.1000.6<16.0.1210.3
Microsoft SQL Server 2022>=16.0.4003.1<16.0.4305.5
Microsoft SQL Server 2025>=17.0.1000.7<17.0.1145.4
Microsoft SQL Server 2025>=17.0.4006.2<17.0.5015.4
Remediation
Event History
Oct 13, 2026
CVE Published
via Microsoft·02:00 PM
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeaknessAffected Software
CVE Published
via MITRE·08:37 PM
Data Sourced
via MITRE·08:37 PM
DescriptionSeverity
Data Sourced
via NVD·09:17 PM
RemedyDescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
Does exploitation require prior access to SQL Server?
Yes. The vulnerability is rated with low privileges required, so the attacker must be authorized before exploiting it. User interaction is not required.
2
Can this be exploited remotely?
Yes. The attack vector is network-based and has low attack complexity.
3
What level of impact could successful exploitation have?
Successful exploitation can result in code execution and is rated for high impact to confidentiality, integrity, and availability.