A Lua sandbox escape vulnerability in Redis could result in remote code execution. The issue is related to a packaging problem and is specific to Debian. It is estimated that around 40,000 out of 360,000 Redis instances are unprotected, with some being vulnerable to this issue. The vulnerability has been exploited in real-world attacks, including by the P2PInfect malware, which targets IoT devices and employs evasion methods. The malware uses the vulnerability to escape the Lua sandbox and execute arbitrary code, then establishes a peer-to-peer connection with a larger network and downloads additional malicious binaries.