CVE-2020-10059

Name: CVE-2020-10059
Creator: NVD / NIST
Published: 2020-05-11T23:15:11.973+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.8/10EPSS 1.18%

Last modified Jun 17, 2026

CVE-2020-10059 is a medium-severity vulnerability rated 4.8/10 on the CVSS scale. The UpdateHub module disables DTLS peer checking, which allows for a man in the middle attack. This is mitigated by firmware images requiring valid signatures. EPSS estimates a 1.18% chance of exploitation in the next 30 days.

Description

The UpdateHub module disables DTLS peer checking, which allows for a man in the middle attack. This is mitigated by firmware images requiring valid signatures. However, there is no benefit to using DTLS without the peer checking. See NCC-ZEP-018 This issue affects: zephyrproject-rtos zephyr version 2.1.0 and later versions.

Metrics

CVSS 3.1

4.8/10

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

EPSS Probability

1.18%

63.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Zephyrproject	Zephyr	2.1.0
Zephyrproject	Zephyr	2.2.0

References

https://docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10059
https://github.com/zephyrproject-rtos/zephyr/pull/24954Patch, Third Party Advisory
https://github.com/zephyrproject-rtos/zephyr/pull/24997Patch, Third Party Advisory
https://github.com/zephyrproject-rtos/zephyr/pull/24999Patch, Third Party Advisory
https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-36Third Party Advisory
https://docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10059
https://github.com/zephyrproject-rtos/zephyr/pull/24954Patch, Third Party Advisory
https://github.com/zephyrproject-rtos/zephyr/pull/24997Patch, Third Party Advisory
https://github.com/zephyrproject-rtos/zephyr/pull/24999Patch, Third Party Advisory
https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-36Third Party Advisory

Timeline

Published: May 11, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-10059?

How severe is CVE-2020-10059?

CVE-2020-10059 has a CVSS score of 4.8/10 (MEDIUM severity). The EPSS model estimates a 1.18% probability of exploitation in the next 30 days.

How do I fix CVE-2020-10059?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-10059?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST