CVE-2021-35394

Realtek Jungle SDK shipped with multiple memory corruption flaws enabling remote code execution.

The Realtek Jungle SDK contained multiple memory corruption vulnerabilities allowing attackers to execute arbitrary code remotely. DIB organizations must treat Realtek SDKs as high-risk components requiring strict input validation and memory safety controls, as the vendor has a documented history of shipping similar high-severity flaws. Failure to patch or isolate these SDKs exposes systems to remote compromise and violates CMMC/NIST 800-171 requirements for managing known vulnerabilities.

Shame score — A major semiconductor vendor repeatedly shipped high-severity RCE and memory corruption flaws in its SDKs and router firmware, indicating inconsistent input validation and memory safety practices that require defense-in-depth controls.