Cesanta Mongoose MQTT Broker main.c fn stack-based overflow

{
                    "vendor": "Cesanta",
                    "product": "Mongoose",
                    "versions": [
                        {
                            "version": "7.0",
                            "status": "affected"
                        },
                        {
                            "version": "7.1",
                            "status": "affected"
                        },
                        {
                            "version": "7.2",
                            "status": "affected"
                        },
                        {
                            "version": "7.3",
                            "status": "affected"
                        },
                        {
                            "version": "7.4",
                            "status": "affected"
                        },
                        {
                            "version": "7.5",
                            "status": "affected"
                        },
                        {
                            "version": "7.6",
                            "status": "affected"
                        },
                        {
                            "version": "7.7",
                            "status": "affected"
                        },
                        {
                            "version": "7.8",
                            "status": "affected"
                        },
                        {
                            "version": "7.9",
                            "status": "affected"
                        },
                        {
                            "version": "7.10",
                            "status": "affected"
                        },
                        {
                            "version": "7.11",
                            "status": "affected"
                        },
                        {
                            "version": "7.12",
                            "status": "affected"
                        },
                        {
                            "version": "7.13",
                            "status": "affected"
                        },
                        {
                            "version": "7.14",
                            "status": "affected"
                        },
                        {
                            "version": "7.15",
                            "status": "affected"
                        },
                        {
                            "version": "7.16",
                            "status": "affected"
                        },
                        {
                            "version": "7.17",
                            "status": "affected"
                        },
                        {
                            "version": "7.18",
                            "status": "affected"
                        },
                        {
                            "version": "7.19",
                            "status": "affected"
                        },
                        {
                            "version": "7.20",
                            "status": "affected"
                        },
                        {
                            "version": "7.21",
                            "status": "affected"
                        },
                        {
                            "version": "7.22",
                            "status": "unaffected"
                        }
                    ],
                    "cpes": [
                        "cpe:2.3:a:cesanta:mongoose:*:*:*:*:*:*:*:*"
                    ],
                    "modules": [
                        "MQTT Broker"
                    ]
                }