Product:
SQL Server
Summary
Missing authentication for critical function in SQL Server allows an authorized attacker to elevate privileges over a network. This vulnerability can lead to significant security risks, including unauthorized access to sensitive data and system control. It is crucial for organizations using SQL Server to be aware of this issue and take appropriate measures.
Details
| Severity | Base Score | CVE |
|---|---|---|
| HIGH | 7.2 | CVE-2026-20803 |
Exploitation
An attacker with authorized access can exploit this vulnerability by sending specially crafted requests to the SQL Server. Since the authentication mechanism is missing for critical functions, the attacker can elevate their privileges and gain unauthorized access to sensitive data or perform administrative actions on the server.
Affected Products
- SQL Server: Vulnerable due to missing authentication for critical functions, allowing privilege escalation.
Mitigation
To mitigate this vulnerability, it is essential to implement proper authentication mechanisms for all critical functions within SQL Server. Regularly updating the software and applying security patches provided by Microsoft can also help protect against potential exploits.