CVE-2026-67393: 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 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 2022<16.0.1200.5
16.0.1200.5
Microsoft SQL Server 2025<17.0.1135.8
17.0.1135.8
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 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
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 access does an attacker need to exploit this issue?
The attacker must be authorized and able to reach the SQL Server instance over the network. No user interaction is required.
2
What is the expected security impact?
The issue can disclose information from the server. The provided CVSS vector indicates high confidentiality impact, with no integrity or availability impact.
3
Which SQL Server releases are identified as affected?
The affected software list includes SQL Server 2017 and SQL Server 2017 CU 31, SQL Server 2019 and SQL Server 2019 CU 32, SQL Server 2022 and SQL Server 2022 CU 26, and SQL Server 2025 and SQL Server 2025 CU8.