Realtek Jungle SDK Exploit Attempts Deliver Cling Botnet With STUN-Based C2

Threat actors are exploiting a patched critical flaw in the Realtek Jungle SDK to deploy Cling botnet malware, which uses STUN-based command-and-control channels. Nozomi Networks reported that Cling repurposes ordinary STUN behavior for C2, making it notable despite no new propagation technique. The attacks target vulnerable devices, and organizations are urged to apply patches to prevent infection.