Yarbo App/Cloud MQTT infrastructure prior 3.17.4 Subscription hard-coded credentials
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 8.4 | $0-$5k | 5.98- |
Summary
A vulnerability classified as critical was found in Yarbo App and Cloud MQTT infrastructure. This issue affects some unknown processing of the component Subscription Handler. Executing a manipulation can lead to hard-coded credentials. The identification of this vulnerability is CVE-2026-10557. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is advised.
Details
A vulnerability classified as critical was found in Yarbo App and Cloud MQTT infrastructure. This vulnerability affects an unknown function of the component Subscription Handler. The manipulation with an unknown input leads to a hard-coded credentials vulnerability. The CWE definition for the vulnerability is CWE-798. The product contains hard-coded credentials, such as a password or cryptographic key, which it uses for its own inbound authentication, outbound communication to external components, or encryption of internal data. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:
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.
The weakness was shared by Markus Lassfolk as icsa-26-162-01. The advisory is available at cisa.gov. This vulnerability was named CVE-2026-10557 since 06/01/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1110.001 by the MITRE ATT&CK project.
Upgrading to version 3.17.4 eliminates this vulnerability.
If you want to get best quality of vulnerability data, you may have to visit VulDB.
Product
Type
Vendor
Name
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒
CVSSv3
VulDB Meta Base Score: 8.5VulDB Meta Temp Score: 8.4
VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔒
VulDB Reliability: 🔍
CNA Base Score: 9.8
CNA Vector (icscert): 🔒
CVSSv2
| AV | AC | Au | C | I | A |
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| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Hard-coded credentialsCWE: CWE-798 / CWE-259 / CWE-255
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔒
Upgrade: App/Cloud MQTT infrastructure 3.17.4
Timeline
06/01/2026 CVE reserved06/12/2026 Advisory disclosed
06/12/2026 VulDB entry created
06/12/2026 VulDB entry last update
Sources
Advisory: icsa-26-162-01Researcher: Markus Lassfolk
Status: Confirmed
CVE: CVE-2026-10557 (🔒)
GCVE (CVE): GCVE-0-2026-10557
GCVE (VulDB): GCVE-100-370594
Entry
Created: 06/12/2026 17:15Changes: 06/12/2026 17:15 (78)
Complete: 🔍
Cache ID: 216::103
If you want to get best quality of vulnerability data, you may have to visit VulDB.
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