{
    "id": "CVE-2020-10062",
    "published": "2020-06-05 18:15:12",
    "last_modified": "2026-06-17 02:47:16",
    "cvss_score": "9.0",
    "cvss_severity": "CRITICAL",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H",
    "cwe": "CWE-193",
    "description": "An off-by-one error in the Zephyr project MQTT packet length decoder can result in memory corruption and possible remote code execution. NCC-ZEP-031 This issue affects: zephyrproject-rtos zephyr version 2.2.0 and later versions.",
    "epss_score": "0.02879",
    "epss_percentile": "0.86472",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-11 18:17:21",
    "priority": {
        "rank": 3,
        "label": "In your normal cycle",
        "why": "Critical by CVSS (9), but no sign of active exploitation."
    },
    "products": [
        {
            "vendor": "zephyrproject",
            "product": "zephyr"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "https://docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10062",
        "https://github.com/zephyrproject-rtos/zephyr/pull/23821/commits/11b7a37d9a0b438270421b224221d91929843de4",
        "https://research.nccgroup.com/2020/05/26/research-report-zephyr-and-mcuboot-security-assessment",
        "https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-84",
        "https://docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10062",
        "https://github.com/zephyrproject-rtos/zephyr/pull/23821/commits/11b7a37d9a0b438270421b224221d91929843de4",
        "https://research.nccgroup.com/2020/05/26/research-report-zephyr-and-mcuboot-security-assessment",
        "https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-84"
    ]
}