Libmodbus

Libmodbus is a compact, widely embedded C library that implements the Modbus protocol for industrial control and SCADA systems, positioning it across critical infrastructure despite a single-product footprint. Vulnerabilities in the library skew strongly toward critical-severity outcomes and center on memory-safety defects—out-of-bounds reads and writes, heap-based buffer overflows, and classic buffer-overflow conditions—that reflect the challenges of parsing untrusted network input in native code without bounds checking. Defenders should inventory products and appliances that bundle this library, since remediation often depends on downstream vendors, and treat patches as high-priority for internet-exposed or operationally critical systems; live severity and current CVE counts are shown alongside this summary.