PatchSiren

PatchSiren cyber security CVE debrief

CVE-2024-52324 Ruijie CVE debrief

A critical vulnerability in Ruijie Reyee OS versions 2.206.x through 2.319.x allows remote unauthenticated attackers to execute arbitrary operating system commands by sending malicious MQTT messages. The vulnerability stems from use of an inherently dangerous function in the device's MQTT message handling. This represents a severe risk to affected network infrastructure devices, as successful exploitation grants complete control without requiring any user interaction or prior authentication.

Vendor
Ruijie
Product
Reyee OS
CVSS
CRITICAL 9.8
CISA KEV
Not listed in stored evidence
Original CVE published
2024-12-03
Original CVE updated
2024-12-10
Advisory published
2024-12-03
Advisory updated
2024-12-10

Who should care

Organizations deploying Ruijie Reyee OS-based network infrastructure including switches, access points, and gateways; managed service providers operating Ruijie equipment; industrial control system operators using Reyee OS devices in OT networks; security teams responsible for IoT and network infrastructure asset protection.

Technical summary

The vulnerability exists in Ruijie Reyee OS MQTT message processing where an inherently dangerous function permits OS command execution through crafted MQTT payloads. Affected versions span 2.206.x through 2.319.x (exclusive of 2.320.x). CVSS 3.1 vector AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H indicates network attack vector, low complexity, no privileges required, no user interaction, with high impact across confidentiality, integrity, and availability. The attack surface is the device's MQTT broker interface, typically exposed for cloud management and device orchestration.

Defensive priority

critical

Recommended defensive actions

  • Verify device firmware version against affected range (2.206.x to 2.319.x)
  • Confirm vendor cloud fix deployment status through Ruijie support channels
  • Monitor MQTT traffic to affected devices for anomalous message patterns
  • Segment IoT/network infrastructure devices from critical business networks per ICS-CERT recommended practices
  • Apply network access controls restricting MQTT broker exposure to authorized systems only
  • Review device logs for indicators of unauthorized command execution

Evidence notes

CISA published initial advisory ICSA-24-338-01 on 2024-12-03 with CVSS 3.1 score 9.8 (Critical). Update A released 2024-12-10 revised CVSS scoring. Vendor reports cloud-based fix deployed with no end-user action required.

Sources and references

Verified primary and authoritative sources

  • CVE-2024-52324 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2024-52324

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2024-52324 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2024-52324

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

  • Source item URL

    Unverified legacy reference

    URL: https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2024/icsa-24-338-01.json

    cisa_csaf

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/news-events/ics-advisories/icsa-24-338-01

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/uscert/ics/alerts/ICS-ALERT-10-301-01

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/resources-tools/resources/ics-recommended-practices

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/sites/default/files/publications/Cybersecurity_Best_Practices_for_Industrial_Control_Systems.pdf

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/topics/industrial-control-systems

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/uscert/sites/default/files/publications/emailscams0905.pdf

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/uscert/ncas/tips/ST04-014

    Reference

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.