CVSS 3.1
9.1 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:NCVE-2026-121688 CVE-2026-121688
Critical (9.1) in frodobots frodobots earthrover mini+ firmware. EPSS 0.2% estimated probability of exploitation activity in the next 30 days.
On this page
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.
Severity
- EPSS
- 0.2% estimated probability of exploitation activity in the next 30 days; 8th percentile. Scored 2026-11-13. A forecast for this CVE across the internet, not for your own systems.
- CISA's assessment (SSVC)
- Exploitation: none · Automatable: yes · Technical impact: total, assessed 2026-11-12. From CISA's Vulnrichment in the CVE List: whether it is exploited, whether exploiting it can be automated, and how much control it gives.
- CWE
- CWE-494 Download of Code Without Integrity Check
- OWASP Top 10
- A08:2025 Software or Data Integrity Failures
- Published
- Modified
- Assigned by
- certcc (CNA)
- NVD analysis
- Deferred: the NVD does not plan to analyze it
- Record from
- the NVD, synced
Ask an AI about this CVE
Show the prompt
Explain CVE-2026-121688 for an engineer deciding whether to act. Use https://cve.bz/api/public/cves/CVE-2026-121688?via=ask-ai-copy and https://cve.bz/cve/CVE-2026-121688?via=ask-ai-copy as the source of truth: what is affected and which versions fix it, whether it is in CISA KEV, public exploits, and its EPSS (an internet-wide 30-day estimate of exploitation activity, not a forecast for my systems). If they give no fixed versions, use the CVE record https://cveawg.mitre.org/api/cve/CVE-2026-121688 or the vendor advisory, not third-party mirrors. Tell me how to check whether I am affected and how to verify a fix. Cite the sources and say where they are uncertain.Opens a third-party assistant; its answer is its own, not cve.bz's. The prompt holds only this CVE's id and public links.
Badge for a README or a site
An image that stays current: it is drawn from the data each time it is fetched (a host that proxies images, as GitHub does, may show its copy for a while). Markdown:
[](https://cve.bz/cve/CVE-2026-121688)
HTML:
<a href="https://cve.bz/cve/CVE-2026-121688"><img src="https://cve.bz/cve/badge/CVE-2026-121688.svg" alt="CVE-2026-121688"></a>
Affected
- frodobots:frodobots earthrover mini+ firmware
Versions
From the CNA's record in the CVE List.
| Product | Affected |
|---|---|
| FrodoBots EarthRover Mini+ firmware | 6.2.4_6.2.5_0.614.0 |
Attack patterns (CAPEC)
The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits. More on the page of CWE-494 (12).
History
- Scored 9.1 critical
- The NVD deferred its analysis
Changes since this site first stored the record. The same for every record: /api/public/changes.