Vulnerability Monitor

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CVE-2020-10062

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.

Security Impact Summary

This vulnerability carries a CRITICAL severity rating with a CVSS v3.1 score of 9.0, indicating it can be exploited remotely over the network but requires specific conditions to be met without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 1 product from zephyrproject organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2020, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.

Published

2020-06-05T18:15:12.573

Last Modified

2024-11-21T04:54:43.857

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 9.0 (CRITICAL)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

6.4

Weaknesses

Type: Secondary
CWE-193
Type: Primary
CWE-193

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	zephyrproject	zephyr	≤ 2.2.0	Yes

References

https://docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10062 Vendor Advisory ([email protected])
https://github.com/zephyrproject-rtos/zephyr/pull/23821/commits/11b7a37d9a0b438270421b224221d91929843de4 Patch, Third Party Advisory ([email protected])
https://research.nccgroup.com/2020/05/26/research-report-zephyr-and-mcuboot-security-assessment Third Party Advisory ([email protected])
https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-84 Third Party Advisory ([email protected])
https://docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10062 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/zephyrproject-rtos/zephyr/pull/23821/commits/11b7a37d9a0b438270421b224221d91929843de4 Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://research.nccgroup.com/2020/05/26/research-report-zephyr-and-mcuboot-security-assessment Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-84 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For zephyrproject's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.