CVE ID :CVE-2026-54410
Published : June 14, 2026, 5:10 p.m. | 1 hour, 11 minutes ago
Description :nanoMODBUS through v1.23.0 contains an off-by-one buffer overflow in the recv_msg_header() function of the Modbus/TCP server that allows remote unauthenticated attackers to write one attacker-controlled byte past the end of the 260-byte receive buffer by sending a crafted MBAP frame whose Length field is set to 255. The overflow corrupts the adjacent buffer-index field of the nanoMODBUS state structure, resulting in denial of service through invalid memory accesses and, on bare-metal and RTOS targets without memory protection, one-byte information disclosure and writes to unintended register addresses on the Write Multiple Registers (FC16) handler path.
Severity: 9.0 | HIGH
Visit the link for more details, such as CVSS details, affected products, timeline, and more… To Read More Visit Read More