CVE-2026-73261 | Cesanta Mongoose up to 7.22 TCP IP Stack src/net_builtin.c handle_opt input validation

October 14, 2026 Yanac

A vulnerability categorized as critical has been discovered in Cesanta Mongoose up to 7.22. This vulnerability affects the function handle_opt of the file src/net_builtin.c of the component TCP IP Stack. Such manipulation leads to improper input validation.

This vulnerability is uniquely identified as CVE-2026-73261. The attack can be launched remotely. No exploit exists.

It is advisable to upgrade the affected component.VulDB Recent EntriesRead More