CVSS 3.1
9.8 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HCVE-2026-121686 CVE-2026-121686
Critical (9.8) in frodobots frodobots earthrover mini+ firmware. EPSS 0.7% 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) is vulnerable to unauthenticated, remote code execution via MQTT. A firmware method accepts arbitrary shell commands delivered via Amazon Web Services Internet of Things Message Queuing Telemetry Transport (AWS IoT MQTT) messages and executes them as root. Access is gated only by shared Internet of Things (IoT) credentials, with no per‑device authentication, enabling remote code execution as root across the fleet.
Severity
- EPSS
- 0.7% estimated probability of exploitation activity in the next 30 days; 55th 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-78 Improper Neutralization of Special Elements used in an OS Command (OS Command Injection)
- OWASP Top 10
- A05:2025 Injection
- 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
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Explain CVE-2026-121686 for an engineer deciding whether to act. Use https://cve.bz/api/public/cves/CVE-2026-121686?via=ask-ai-copy and https://cve.bz/cve/CVE-2026-121686?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-2026-121686 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.
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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)
- CAPEC-6 Argument Injection Likelihood: High · Severity: High
- CAPEC-15 Command Delimiters Likelihood: High · Severity: High
- CAPEC-43 Exploiting Multiple Input Interpretation Layers Likelihood: Medium · Severity: High
- CAPEC-88 OS Command Injection Likelihood: High · Severity: High
- CAPEC-108 Command Line Execution through SQL Injection Likelihood: Low · Severity: Very High
The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits.
History
- Scored 9.8 critical
- The NVD deferred its analysis
Changes since this site first stored the record. The same for every record: /api/public/changes.