Product:
Microsoft Defender for Linux
Summary
Improper control of code generation in Microsoft Defender for Linux allows an unauthorized attacker to execute code over an adjacent network. This vulnerability poses a significant risk as it can lead to unauthorized access and control over affected systems. The potential impact includes high confidentiality, integrity, and availability risks.
Details
| Severity | Base Score | CVE |
|---|---|---|
| HIGH | 8.8 | CVE-2026-21537 |
Exploitation
To exploit this vulnerability, an attacker must be on an adjacent network and can leverage the improper control of code generation to inject malicious code. This can be done without requiring any privileges or user interaction, making it easier for attackers to execute their payloads and compromise the system.
Affected Products
- Microsoft Defender for Linux: A security solution designed to protect Linux systems from various threats, which is vulnerable due to improper code generation control.
Mitigation
To mitigate this vulnerability, it is recommended to apply the latest security updates provided by Microsoft. Additionally, network segmentation and monitoring can help reduce the risk of adjacent network attacks. Regular security assessments and adherence to best practices can further enhance the security posture.