Buffer over-read in SQL Server allows an authorized attacker to disclose information over a network.
What type of information could be disclosed by this vulnerability? An attacker who successfully exploited this vulnerability could potentially read small portions of heap memory. I am running SQL Server on my system. What action do I need to take? Update your relevant version of SQL Server. Any applicable driver fixes are included in those updates. There are GDR and/or CU (Cumulative Update) updates offered for my version of SQL Server. How do I know which update to use? First, determine your SQL Server version number. For more information on determining your SQL Server version number, see Microsoft Knowledge Base Article 321185 - How to determine the version, edition, and update level of SQL Server and its components. Second, in the following table, locate your version number or the version range that your version number falls within. The corresponding update is the one you need to install. Note If your SQL Server version number is not represented in the table below, your SQL Server version is no longer supported. Please upgrade to the latest Service Pack or SQL Server product to apply this and future security updates. Update Number Title Version Apply if current product version is… This security update also includes servicing releases up through… 5101346 Security update for SQL Server 2025 CU6+GDR 17.0.4060.2 17.0.4006.2 - 17.0.4055.5 KB5093421 - Previous SQL2025 RTM CU6 5102333 Security update for SQL Server 2025 RTM+GDR 17.0.1125.2 17.0.1000.7 - 17.0.1115.1 KB5091223 - Previous SQL2025 RTM GDR 5101347 Security update for SQL Server 2022 CU25+GDR 16.0.4262.2 16.0.4003.1 - 16.0.4255.1 KB5081477 - Previous SQL2022 RTM CU25 5102334 Security update for SQL Server 2022 RTM+GDR 16.0.1190.2 16.0.1000.6 - 16.0.1180.1 KB5091158 - Previous SQL2022 RTM GDR 5102335 Security update for SQL Server 2019 CU32+GDR 15.0.4480.2 15.0.4003.23 - 15.0.4470.1 KB5090407 - Previous SQL2019 RTM CU32 GDR 5102336 Security update for SQL Server 2019 RTM+GDR 15.0.2180.2 15.0
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