CVE-2026-67390: Microsoft SQL Server Information Disclosure Vulnerability
Published Sep 8, 2026
·Updated
Buffer over-read in SQL Server allows an authorized attacker to disclose information over a network.
Other sources
Microsoft SQL Server Information Disclosure Vulnerability
— Microsoft
Affected Software
16 affected componentsFixes available
Microsoft SQL Server 2022 (CU 26)<16.0.4275.2
16.0.4275.2
Microsoft SQL Server 2019 (CU 32)<15.0.4490.9
15.0.4490.9
Microsoft SQL Server 2025 (CU8)<17.0.4085.5
17.0.4085.5
Microsoft SQL Server 2025<17.0.1135.8
17.0.1135.8
Microsoft SQL Server 2022<16.0.1200.5
16.0.1200.5
Microsoft SQL Server 2019<15.0.2190.7
15.0.2190.7
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 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·05:14 PM
Data Sourced
via MITRE·05:14 PM
DescriptionSeverity
Data Sourced
via NVD·06:18 PM
RemedyDescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What level of access does an attacker need?
The attacker must be authorized, meaning they need low-privileged access to SQL Server. Exploitation can occur over the network and does not require user interaction.
2
What is the expected security impact?
The issue can disclose information because of a buffer over-read. The provided severity data indicates high confidentiality impact, with no indicated integrity or availability impact.
3
Which SQL Server releases are identified?
The listed software includes Microsoft SQL Server 2017, 2019, 2022, and 2025, including SQL Server 2017 CU31, SQL Server 2019 CU32, SQL Server 2022 CU26, and SQL Server 2025 CU8.