PatchSiren

cwalter-at CVE debriefs

These pages are published after PatchSiren validates generated defensive summaries against stored public CVE and source evidence.

CRITICAL cwalter-at CVE published 2026-08-05

CVE-2026-71263

The FreeModbus LINUXTCP port is vulnerable to an off-by-one bounds check in the xMBPortTCPPool() function, located in the porttcp.c file. This vulnerability allows for unauthenticated remote code execution due to a flawed comparison in the check `if (usTCPFrameBytesLeft > MB_TCP_BUF_SIZE)`. A crafted Modbus TCP packet can trigger a buffer overflow, impacting the security of industrial control systems and [truncated]