CVSS 3.1
9.8 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HCVE-2020-10071
The Zephyr MQTT parsing code performs insufficient checking of the length field on publish messages, allowing a buffer overflow and potentially remote code execution. NCC-ZEP-031 This issue affects: zephyrproject-rtos zephyr version 2.2.0 and later versions.
Severity
- EPSS
- 3.4% chance of exploitation in the next 30 days; higher than 88% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-120, CWE-129
- Published
- Modified
- Record from
- the NVD, synced
Affected
- zephyrproject:zephyr
References
- https://docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10071
- https://github.com/zephyrproject-rtos/zephyr/pull/23821/commits/989c4713ba429aa5105fe476b4d629718f3e6082
- https://research.nccgroup.com/2020/05/26/research-report-zephyr-and-mcuboot-security-assessment
- https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-86
- https://docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10071