CVE-2026-36355

Realtek · rtl819x Jungle SDK

A vulnerability exists in the Realtek rtl819x Jungle SDK affecting the rtl8192cd Wi-Fi kernel driver, which may allow for unauthorized system impact.

Executive summary

The Realtek rtl819x Jungle SDK contains a high-severity flaw in the Wi-Fi kernel driver that could lead to unauthorized system-level access.

Vulnerability

This vulnerability affects the rtl8192cd Wi-Fi kernel driver. It involves an improper handling of data within the driver, which may be exploited to compromise the stability or security of the host system.

Business impact

The CVSS score of 7.7 reflects a high risk to organizations relying on hardware integrated with the Realtek SDK. Successful exploitation could result in the compromise of wireless communications or the host operating system, potentially leading to data exfiltration or denial of service.

Remediation

Immediate Action: Update to the latest firmware or SDK version provided by the hardware manufacturer.

Proactive Monitoring: Monitor network infrastructure logs for abnormal Wi-Fi driver behavior or unexpected system reboots.

Compensating Controls: Restrict access to wireless management interfaces to trusted administrative subnets to minimize the attack surface.

Exploitation status

Public Exploit Available: false

Analyst recommendation

Hardware administrators must verify the SDK versions used in their wireless equipment and apply vendor-supplied patches promptly. Given the role of the kernel driver in system security, deferring this update is not recommended.