What’s Vulnerable › Vulnerabilities

CVE-2020-10061: Error handling invalid packet sequence

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-06-05 · updated 2026-06-17
• Weakness: CWE-119

Description

Improper handling of the full-buffer case in the Zephyr Bluetooth implementation can result in memory corruption. This issue affects: zephyrproject-rtos zephyr version 2.2.0 and later versions, and version 1.14.0 and later versions.

Affected products

• zephyrproject zephyr: before 1.14.0; from 2.0.0 before 2.2.0 — fixed in 1.14.0, 2.2.0

How to fix

Upgrade to a fixed version: zephyrproject zephyr 1.14.0, 2.2.0. Check the vendor advisory for mitigations.

References

• https://docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10061
• https://github.com/zephyrproject-rtos/zephyr/pull/23091
• https://github.com/zephyrproject-rtos/zephyr/pull/23516
• https://github.com/zephyrproject-rtos/zephyr/pull/23517
• https://github.com/zephyrproject-rtos/zephyr/pull/23547
• https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-75
• https://docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10061
• https://github.com/zephyrproject-rtos/zephyr/pull/23091
• https://github.com/zephyrproject-rtos/zephyr/pull/23516
• https://github.com/zephyrproject-rtos/zephyr/pull/23517
• https://github.com/zephyrproject-rtos/zephyr/pull/23547
• https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-75

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