CyberRota Analysis
AI-GeneratedA vulnerability in the ReadVar Request Handler of the davenardella snap7 library (up to version 1.4.3) allows for an out-of-bounds write, potentially compromising system integrity. Exploitation requires local network access, making it critical for organizations using this library in their applications to prioritize patching or mitigation strategies. Given the published exploit, immediate attention is advised for those managing affected systems.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
Note: these links are listed for security research and verification purposes only.
Original NVD Description
A flaw has been found in davenardella snap7 up to 1.4.3. This affects the function TS7Worker::PerformFunctionRead of the file src/core/s7_server.cpp of the component ReadVar Request Handler. This manipulation causes out-of-bounds write. The attack requires access to the local network. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.