CVE-2026-7414Public exploitNetwork attack vector

Unauthenticated root access via fleet-wide SSH password

Published May 7, 2026 · Updated May 7, 2026

Hard-coded credentials in Yarbo Core Firmware 2.3.9 and earlier allow remote attackers to obtain root access through an SSH tunnel. The credential_updater component passes the same embedded password to passwd root on every deployment, while an FRP tunnel exposes SSH with root login enabled. A robot serial number and the fleet-wide password are sufficient for remote attackers to gain a persistent root shell and read or alter device data.

CVSS severity9.8
Critical
EPSS probability0.53%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Hard-coded credentials in Yarbo Core Firmware 2.3.9 and earlier allow remote attackers to obtain root access through an SSH tunnel. The credential_updater component passes the same embedded password to passwd root on every deployment, while an FRP tunnel exposes SSH with root login enabled. A robot serial number and the fleet-wide password are sufficient for remote attackers to gain a persistent root shell and read or alter device data.

The record

CVE
CVE-2026-7414
Published
May 7, 2026
Updated
May 7, 2026
Vendor
Yarbo
Product
Yarbo Core Firmware
Classifications
CWE-798, T1078, T1133
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 7, 2026CVE publishedPublication date reported by the CVE source.
  2. May 7, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=2.3.9

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Yarbo · Yarbo Core Firmwareversion=0 <=2.3.9

Published CVSS scores

9.8AHACVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-798Use of Hard-coded Credentials
T1078Valid Accounts
T1133External Remote Services

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo