CVE-2026-88089: Microsoft SQL Server Remote Code Execution Vulnerability
Published Oct 13, 2026
·Updated
Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code locally.
Other sources
Microsoft SQL Server Remote Code Execution Vulnerability
— Microsoft
Affected Software
25 affected componentsFixes available
Microsoft SQL Server 2017<14.0.2140.2
14.0.2140.2
Microsoft SQL Server 2022<16.0.1210.3
16.0.1210.3
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 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 2025<17.0.5015.4
17.0.5015.4
Microsoft SQL Server 2019<15.0.4500.2
15.0.4500.2
Microsoft SQL Server 2025
Microsoft SQL Server 2022<16.0.4305.5
16.0.4305.5
Microsoft SQL Server 2017<14.0.3560.2
14.0.3560.2
Microsoft SQL Server 2017>=14.0.1000.169<14.0.2140.2
Microsoft SQL Server 2017>=14.0.3006.16<14.0.3560.2
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·09:19 PM
RemedyDescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
Is this exposed to unauthenticated or remote attackers?
The available scoring indicates local attack vector and high privileges required. The data does not indicate that unauthenticated or network-only exploitation is possible.
2
Which SQL Server releases are identified as affected?
The listed software includes Microsoft SQL Server 2017, 2019 CU32, 2022 and CU27, and 2025 including CU8 and CU9. The data does not identify fixed versions or update guidance beyond the referenced Microsoft advisory.
3
What could exploitation allow?
Successful exploitation could allow local code execution. The supplied vector also rates confidentiality, integrity, and availability impacts as high.