Executive brief
SQL Server, a widely-used database platform, contains a vulnerability where uninitialized data can be read by authenticated users over the network. An attacker with valid database credentials could exploit this to access sensitive information stored in memory, potentially exposing customer data, credentials, or other confidential records.
Technical details
The vulnerability is a use-of-uninitialized-resource (CWE-908) condition in SQL Server that allows an authenticated attacker to read uninitialized memory over the network. The root cause involves improper initialization of a data buffer or object that is later returned to a client connection. This requires an authorized user with network access to the SQL Server instance. An attacker can trigger the vulnerable code path to disclose uninitialized memory contents, potentially containing sensitive application data or system information. A patch from Microsoft is expected to be available through standard security updates.
Affected products
- Microsoft SQL Server
Timeline
- 2026-09-08: disclosed