EUVD-2026-62418
GHSA-8jmp-g7g6-gf45
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Network-reachable MQTT broker requires low-privilege authenticated access; no scope change as impact is confined to the router itself.
Primary rating from Vendor (VulnCheck).
CVSS VectorVendor: VulnCheck
Lifecycle Timeline
3DescriptionCVE.org
Cudy WR3000 2.0 running firmware before 2.5.24 contains an OS command injection vulnerability that allows authenticated attackers to execute arbitrary OS commands with root privileges by sending unsanitized input through the mesh MQTT command interface. The sync_command binary forwards unsanitized input directly to a shell execution sink in command.lua, enabling attackers with access to the MQTT broker to exploit the default-enabled command execution path to achieve full root-level system compromise.
AnalysisAI
OS command injection in the Cudy WR3000 2.0 router allows an authenticated network attacker to execute arbitrary commands with root privileges by exploiting the mesh MQTT command interface. The sync_command binary passes unsanitized attacker-controlled input directly to a shell execution sink in command.lua, and the vulnerable command execution path is enabled by default. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires authenticated access to the MQTT broker running on the Cudy WR3000 2.0 - meaning the attacker must be able to publish messages to the mesh MQTT command interface, which is described as default-enabled in the firmware. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 score of 8.7 (AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H) accurately reflects the real-world risk profile. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | The primary remediation is upgrading the Cudy WR3000 2.0 firmware to version 2.5.24 or later, available from the Cudy download center at https://www.cudy.com/en-us/pages/download-center/wr3000-2-0. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: inventory all Cudy WR3000 2.0 deployments with mesh networking enabled and review administrative access controls. …
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More in Wr3000 2 0
View allSame weakness CWE-78 – OS Command Injection
View allSame technique Command Injection
View allShare
External POC / Exploit Code
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