CVE-2022-0553: Possible to retrieve uncrypted firmware image

Severity: medium (CVSS 4.6 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2023-01-11 · updated 2026-06-17
Weakness: CWE-200

Description

There is no check to see if slot 0 is being uploaded from the device to the host. When using encrypted images this means the unencrypted firmware can be retrieved easily.

Affected products

zephyrproject zephyr: before 3.0.0 — fixed in 3.0.0

How to fix

Upgrade to a fixed version: zephyrproject zephyr 3.0.0. Check the vendor advisory for mitigations.

References

https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-wrj2-9vj9-rrcp
https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-wrj2-9vj9-rrcp

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