CVE-2017-14202: The shell implementation does not protect against buffer overruns resulting in unpredictable behavior.

Severity: high (CVSS 7.8 v3.0)
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: 2019-08-29 · updated 2026-06-17
Weakness: CWE-119

Description

Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in the shell component of Zephyr allows a serial or telnet connected user to cause a crash, possibly with arbitrary code execution. This issue affects: Zephyr shell versions prior to 1.14.0 on all.

Affected products

zephyrproject zephyr: before 1.14.0 — fixed in 1.14.0

How to fix

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

References

https://docs.zephyrproject.org/1.14.0/releases/release-notes-1.14.html
https://github.com/zephyrproject-rtos/zephyr/pull/13048
https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-18
https://docs.zephyrproject.org/1.14.0/releases/release-notes-1.14.html
https://github.com/zephyrproject-rtos/zephyr/pull/13048
https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-18

Get alerted when CVE-2017-14202 or the next vulnerability affects your stack