Executive brief
SQL Server is a database platform used by enterprises to store and manage critical business data. A heap-based buffer overflow vulnerability allows an authorized attacker with network access to execute arbitrary code on the database server, potentially compromising data confidentiality, integrity, and system availability.
Technical details
A heap-based buffer overflow exists in Microsoft SQL Server that can be exploited by an authenticated attacker over the network. The vulnerability requires valid credentials to trigger, limiting the attack surface to authorized or compromised accounts. Successful exploitation allows remote code execution with the privileges of the SQL Server process, potentially leading to data exfiltration, modification, or denial of service. A patch is expected from Microsoft through their standard security update process.
Affected products
- Microsoft SQL Server
Timeline
- 2026-09-08: disclosed