CVE-2020-10062

CriticalCVSS 9.8/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-193

Affected software

Vendor	Product	Versions
zephyrproject-rtos	zephyr	>= 2.2.0, < unspecified

References

https://docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10062Vendor Advisory
https://github.com/zephyrproject-rtos/zephyr/pull/23821/commits/11b7a37d9a0b438270421b224221d91929843de4Patch, Third Party Advisory
https://research.nccgroup.com/2020/05/26/research-report-zephyr-and-mcuboot-security-assessmentThird Party Advisory
https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-84Third Party Advisory
https://docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10062Vendor Advisory
https://github.com/zephyrproject-rtos/zephyr/pull/23821/commits/11b7a37d9a0b438270421b224221d91929843de4Patch, Third Party Advisory
https://research.nccgroup.com/2020/05/26/research-report-zephyr-and-mcuboot-security-assessmentThird Party Advisory
https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-84Third Party Advisory

Timeline

Published: Jun 5, 2020
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2020

CVE-2020-100637.5A remote adversary with the ability to send arbitrary CoAP packets to be parsed by Zephyr is able to cause a denial of service. This issue a CVE-2020-100649.8Improper Input Frame Validation in ieee802154 Processing. Zephyr versions >= v1.14.2, >= v2.2.0 contain Stack-based Buffer Overflow (CWE-121 CVE-2020-100658.8Missing Size Checks in Bluetooth HCI over SPI. Zephyr versions >= v1.14.2, >= v2.2.0 contain Improper Handling of Length Parameter Inconsist CVE-2020-100665.7Incorrect Error Handling in Bluetooth HCI core. Zephyr versions >= v1.14.2, >= v2.2.0 contain NULL Pointer Dereference (CWE-476). For more i CVE-2020-100677.8A malicious userspace application can cause a integer overflow and bypass security checks performed by system call handlers. The impact woul CVE-2020-100686.5In the Zephyr project Bluetooth subsystem, certain duplicate and back-to-back packets can cause incorrect behavior, resulting in a denial of CVE-2020-100696.5Zephyr Bluetooth unchecked packet data results in denial of service. Zephyr versions >= v1.14.2, >= v2.2.0 contain Improper Handling of Para CVE-2020-10075.5An information disclosure vulnerability exists when the Windows kernel improperly handles objects in memory, aka 'Windows Kernel Information CVE-2020-100709.8In the Zephyr Project MQTT code, improper bounds checking can result in memory corruption and possibly remote code execution. NCC-ZEP-031 Th CVE-2020-100719.8The Zephyr MQTT parsing code performs insufficient checking of the length field on publish messages, allowing a buffer overflow and potentia CVE-2020-100725.3Improper Handling of Insufficient Permissions or Privileges in zephyr. Zephyr versions >= v1.14.2, >= v2.2.0 contain Improper Handling of In CVE-2020-100737.5GitLab EE 12.4.2 through 12.8.1 allows Denial of Service. It was internally discovered that a potential denial of service involving permissi