CVE-2026-67645: Microsoft SQL Server Information Disclosure Vulnerability
Published Sep 8, 2026
·Updated
Microsoft SQL Server Information Disclosure Vulnerability
Other sources
Out-of-bounds read in SQL Server allows an authorized attacker to disclose information over a network.
— Microsoft
Affected Software
17 affected componentsFixes available
Microsoft SQL Server
Microsoft SQL Server 2017<14.0.2130.4
14.0.2130.4
Microsoft SQL Server 2025<17.0.1135.8
17.0.1135.8
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 2022<16.0.1200.5
16.0.1200.5
Microsoft SQL Server 2017 (CU 31)<14.0.3550.4
14.0.3550.4
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
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·05:18 PM
Data Sourced
via MITRE·05:18 PM
DescriptionSeverity
Data Sourced
via NVD·06:18 PM
RemedyDescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
Who can exploit this issue?
An attacker must be authorized to access SQL Server and able to reach it over the network. The provided data does not indicate that unauthenticated attackers can exploit it.
2
What is the likely impact if exploitation succeeds?
Successful exploitation can disclose information through an out-of-bounds read. The available data indicates high confidentiality impact, with no stated integrity or availability impact.
3
Which SQL Server releases are identified as affected?
The affected software list includes SQL Server 2017, 2019, 2022, and 2025, including SQL Server 2017 CU 31, SQL Server 2019 CU 32, SQL Server 2022 CU 26, and SQL Server 2025 CU8.