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CVE-2026-101003 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CNA: [email protected]CVSS-B:5.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/cesanta/mongoose/	[email protected]	Vendor
https://github.com/cesanta/mongoose/commit/a9df523f76f43a38bd53b4232b9cfd4c16869e71	[email protected]	Source CodeVendor
https://github.com/cesanta/mongoose/releases/tag/7.22	[email protected]	Release NotesVendor
https://vuldb.com/cve/CVE-2026-101003	[email protected]	AdvisoryPermission Required
https://vuldb.com/submit/920005	[email protected]	Issue TrackingPermission Required
https://vuldb.com/vuln/410873	[email protected]	AdvisoryPermission Required
https://vuldb.com/vuln/410873/cti	[email protected]	Content Wall

see all 7 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-119	Improper Restriction of Operations within the Bounds of a Memory Buffer	[email protected]
CWE-121	Stack-based Buffer Overflow	[email protected]

Affected Products

Product	Versions
Cesanta Mongoose	<= 7.21
CPE cpe:2.3:a:cesanta:mongoose:::::::: Remediation Upgrade: 7.22moderate efforthttps://github.com/cesanta/mongoose/releases/tag/7.22

Change History

1 change record found show changes