CVE-2026-85888: Microsoft SQL Server Information Disclosure Vulnerability
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
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 17.0.1145.4Patch KB5128492 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 14.0.2140.2Patch KB5128497 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.4305.5Patch KB5126934 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 15.0.4500.2Patch KB5128494 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 17.0.5015.4Patch KB5126967 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.1210.3Patch KB5128493 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 14.0.3560.2Patch KB5128496 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 15.0.2200.2Patch KB5128495
Event History
Frequently Asked Questions
What level of access does an attacker need to exploit this issue?
An attacker must already be authorized to access SQL Server. The vulnerability is exploitable over the network and does not require user interaction.
What is the potential impact if exploited?
Successful exploitation can disclose information from the affected SQL Server. The supplied severity data rates confidentiality impact as high, with no indicated integrity or availability impact.
Which SQL Server releases are identified as affected?
The provided data identifies SQL Server 2017, SQL Server 2019, SQL Server 2022, and SQL Server 2025, including SQL Server 2017 CU31, SQL Server 2019 CU32, SQL Server 2022 CU27, and SQL Server 2025 CU9.