Detections
Analytics

CVE-2020-10062

critical

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.

References

https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-84

https://research.nccgroup.com/2020/05/26/research-report-zephyr-and-mcuboot-security-assessment

https://github.com/zephyrproject-rtos/zephyr/pull/23821/commits/11b7a37d9a0b438270421b224221d91929843de4

https://docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10062

Details

Source: Mitre, NVD

Published: 2020-06-05

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.05817