What’s Vulnerable › Vulnerabilities

CVE-2020-10022: UpdateHub Module Copies a Variable-Size Hash String Into a Fixed-Size Array

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-05-11 · updated 2026-06-17
• Weakness: CWE-120

Description

A malformed JSON payload that is received from an UpdateHub server may trigger memory corruption in the Zephyr OS. This could result in a denial of service in the best case, or code execution in the worst case. See NCC-NCC-016 This issue affects: zephyrproject-rtos zephyr version 2.1.0 and later versions. version 2.2.0 and later versions.

Affected products

• zephyrproject zephyr: 2.1.0, 2.2.0

References

• https://docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10022
• https://github.com/zephyrproject-rtos/zephyr/pull/24065
• https://github.com/zephyrproject-rtos/zephyr/pull/24066
• https://github.com/zephyrproject-rtos/zephyr/pull/24154
• https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-28
• https://docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10022
• https://github.com/zephyrproject-rtos/zephyr/pull/24065
• https://github.com/zephyrproject-rtos/zephyr/pull/24066
• https://github.com/zephyrproject-rtos/zephyr/pull/24154
• https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-28

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