{"schema_version":1,"title":"Contiki-NG vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 3 vulnerabilities in Contiki-NG: 0 in the last 7 days and 3 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-5857, was published on 6 August 2026. 1 technology has a page of its own.","url":"https://junglewise.ai/threats/vendors/contiki-ng","json_url":"https://junglewise.ai/threats/vendors/contiki-ng.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/vendors/contiki-ng","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"vendor","counts":{"high":3,"all_time":3,"critical":0,"exploited":0,"last_7_days":0,"last_30_days":0,"last_90_days":3,"last_365_days":3},"latest":[{"cve":"CVE-2026-5857","cvss":8.1,"epss":0.0092,"slug":"cve-2026-5857-contiki-ng-mqtt-client-buffer-overflow-in-topic-parsing","title":"Contiki-NG MQTT client buffer overflow in topic parsing","severity":"high","exploited":false,"published_at":"2026-08-06T22:18:10.9+00:00","url":"https://junglewise.ai/threats/cve-2026-5857-contiki-ng-mqtt-client-buffer-overflow-in-topic-parsing"},{"cve":"CVE-2026-5856","cvss":7.1,"epss":0.0029,"slug":"cve-2026-5856-contiki-ng-dns-resolver-out-of-bounds-read-in-skip-name","title":"Contiki-NG DNS resolver out-of-bounds read in skip_name()","severity":"high","exploited":false,"published_at":"2026-08-06T22:18:10.743+00:00","url":"https://junglewise.ai/threats/cve-2026-5856-contiki-ng-dns-resolver-out-of-bounds-read-in-skip-name"},{"cve":"CVE-2026-5855","cvss":7.5,"epss":0.0072,"slug":"cve-2026-5855-contiki-ng-lwm2m-tlv-parser-buffer-over-read-in-lwm2m-tlv-read","title":"Contiki-NG LwM2M TLV parser buffer over-read in lwm2m_tlv_read()","severity":"high","exploited":false,"published_at":"2026-08-06T22:18:10.59+00:00","url":"https://junglewise.ai/threats/cve-2026-5855-contiki-ng-lwm2m-tlv-parser-buffer-over-read-in-lwm2m-tlv-read"}],"vendor":{"hub":true,"name":"Contiki-NG","slug":"contiki-ng","url":"https://junglewise.ai/threats/vendors/contiki-ng"},"weekly":[{"week":"2026-06-29","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-06","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-13","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-20","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-27","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-03","critical":0,"exploited":0,"vulnerabilities":3},{"week":"2026-08-10","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-31","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-14","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0}],"most_severe":[{"cve":"CVE-2026-5857","cvss":8.1,"epss":0.0092,"slug":"cve-2026-5857-contiki-ng-mqtt-client-buffer-overflow-in-topic-parsing","title":"Contiki-NG MQTT client buffer overflow in topic parsing","severity":"high","exploited":false,"published_at":"2026-08-06T22:18:10.9+00:00","url":"https://junglewise.ai/threats/cve-2026-5857-contiki-ng-mqtt-client-buffer-overflow-in-topic-parsing"},{"cve":"CVE-2026-5855","cvss":7.5,"epss":0.0072,"slug":"cve-2026-5855-contiki-ng-lwm2m-tlv-parser-buffer-over-read-in-lwm2m-tlv-read","title":"Contiki-NG LwM2M TLV parser buffer over-read in lwm2m_tlv_read()","severity":"high","exploited":false,"published_at":"2026-08-06T22:18:10.59+00:00","url":"https://junglewise.ai/threats/cve-2026-5855-contiki-ng-lwm2m-tlv-parser-buffer-over-read-in-lwm2m-tlv-read"},{"cve":"CVE-2026-5856","cvss":7.1,"epss":0.0029,"slug":"cve-2026-5856-contiki-ng-dns-resolver-out-of-bounds-read-in-skip-name","title":"Contiki-NG DNS resolver out-of-bounds read in skip_name()","severity":"high","exploited":false,"published_at":"2026-08-06T22:18:10.743+00:00","url":"https://junglewise.ai/threats/cve-2026-5856-contiki-ng-dns-resolver-out-of-bounds-read-in-skip-name"}],"generated_at":"2026-09-26T09:11:00.170868+00:00","technologies":[{"name":"Contiki-NG","slug":"contiki-ng","vulnerabilities":3,"url":"https://junglewise.ai/threats/technologies/contiki-ng"}]}