The Yarbo Android and iOS applications contain hard-coded MQTT broker credentials that are identical for all users and all devices. These credentials are embedded in the application binary and are readily extractable via APK decompilation. The credentials provide access to cloud MQTT brokers carrying real-time telemetry for the entire global Yarbo robot fleet. They allow both wildcard subscription to all robot telemetry topics and publishing to any robot's command topic using only the robot's serial number.
CVE-2026-10557
CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence
Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-06-12. a secondary CVSS source baseline 9.8; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 9.8Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 9.8
- EG Score
- 9.8(high)
- EPSS
- 27.4%
- KEV
- Not listed
Published
June 12, 2026
Last Modified
June 12, 2026
Advisory Details (2)
Auto-updated Jun 20, 2026Patch available. Sources: cisa.
cisa Patch Available
Yarbo Android/iOS Mobile Application and Cloud Infrastructure | CISA
https://www.cisa.gov/news-events/ics-advisories/icsa-26-162-01generic
CSAF/csaf_files/OT/white/2026/icsa-26-162-01.json at develop · cisagov/CSAF · GitHub
https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-162-01.jsonVendor Advisories for CVE-2026-10557(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Frequently asked(5)
What is CVE-2026-10557?
CVE-2026-10557 is a critical vulnerability published on June 12, 2026. The Yarbo Android and iOS applications contain hard-coded MQTT broker credentials that are identical for all users and all devices. These credentials are embedded in the application binary and are readily extractable via APK decompilation. The credentials provide access to cloud MQTT brokers…
When was CVE-2026-10557 disclosed?
CVE-2026-10557 was first published in the National Vulnerability Database on June 12, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-10557 actively exploited?
CVE-2026-10557 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 27.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-10557?
CVE-2026-10557 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-10557?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-10557, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-10557
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