CVE-2026-101003
mediumA weakness has been identified in Cesanta Mongoose up to 7.21.
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/cesanta/mongoose/ cna@vuldb.com
- https://github.com/cesanta/mongoose/commit/a9df523f76f43a38bd53b4232b9cfd4c16869e71 cna@vuldb.com
- https://github.com/cesanta/mongoose/releases/tag/7.22 cna@vuldb.com
- https://vuldb.com/cve/CVE-2026-101003 cna@vuldb.com
- https://vuldb.com/submit/920005 cna@vuldb.com
- https://vuldb.com/vuln/410873 cna@vuldb.com
- https://vuldb.com/vuln/410873/cti cna@vuldb.com