CVE-2024-52324Public exploitNetwork attack vector

Remote command execution via MQTT command payloads

Published Dec 6, 2024 · Updated Dec 6, 2024

Command injection in Ruijie Networks ReyeeOS before 2.320.x allows remote attackers to execute OS commands through crafted MQTT messages. The mqlink.elf cloud-communication binary accepts command-topic payloads as OS commands and executes them without distinguishing attacker-published messages from cloud instructions. Exploitation requires a cloud-connected device and the ability to publish to its MQTT command topic, after which code runs on the appliance and can expose its internal network.

CVSS severity9.2
Critical
EPSS probability0.69%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in Ruijie Networks ReyeeOS before 2.320.x allows remote attackers to execute OS commands through crafted MQTT messages. The mqlink.elf cloud-communication binary accepts command-topic payloads as OS commands and executes them without distinguishing attacker-published messages from cloud instructions. Exploitation requires a cloud-connected device and the ability to publish to its MQTT command topic, after which code runs on the appliance and can expose its internal network.

The record

CVE
CVE-2024-52324
Published
Dec 6, 2024
Updated
Dec 6, 2024
Vendor
Ruijie Networks
Product
ReyeeOS
Classifications
CWE-242, T1059
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 6, 2024CVE publishedPublication date reported by the CVE source.
  2. Dec 6, 2024Record 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=2.206.x <2.320.x

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Ruijie Networks · ReyeeOSversion=2.206.x <2.320.x

Published CVSS scores

9.8ICS-CERTCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.2ICS-CERTCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
9.8NIST NVDCVSS: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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-242Use of Inherently Dangerous Function
T1059Command and Scripting Interpreter

Public exploit references

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

Technologies

Your stack

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Your stack

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