CVE Watch1 oct 2026

CVE-2026-101003

A weakness has been identified in Cesanta Mongoose up to 7.21. Affected by this vulnerability is the function fn of the file tutorials/mqtt/

CVSS

5.3

Medio

EPSS

0.5%

p40

KEV

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Exploit Today

0-100

Publicado: 28 sept 2026 · Última mod.: 1 oct 2026 · CWE-119 · CWE-121

EPSS · 30d

0.5%EPSS · 30 días0.5%

2026-09-282026-10-25

Descripción técnica

A weakness has been identified in Cesanta Mongoose up to 7.21. Affected by this vulnerability is the function fn of the file tutorials/mqtt/mqtt-server/main.c of the component MQTT Broker. Executing a manipulation can lead to stack-based buffer overflow. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks. Upgrading to version 7.22 addresses this issue. This patch is called a9df523f76f43a38bd53b4232b9cfd4c16869e71. Upgrading the affected component is advised.

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