CVE-2026-87121 | lwIP up to 2.2.1 MQTT out-of-bounds write

September 22, 2026 Yanac

A vulnerability has been found in lwIP up to 2.2.1 and classified as very critical. This vulnerability affects unknown code of the component MQTT. The manipulation leads to out-of-bounds write.

This vulnerability is traded as CVE-2026-87121. It is possible to initiate the attack remotely. There is no exploit available.VulDB Recent EntriesRead More