CVE-2024-46874Public exploitNetwork attack vector

Cross-device command issuance via unrestricted MQTT publishing

Published Dec 6, 2024 · Updated Dec 6, 2024

Improper MQTT authorization in Ruijie Networks ReyeeOS before 2.320.x allows remote authenticated users to issue cross-device commands. The cloud MQTT broker accepts publications from device-authenticated clients to command topics without enforcing per-device topic permissions. Valid device credentials are required; accepted messages impersonate the cloud and can direct other managed devices.

CVSS severity8.1
High
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper MQTT authorization in Ruijie Networks ReyeeOS before 2.320.x allows remote authenticated users to issue cross-device commands. The cloud MQTT broker accepts publications from device-authenticated clients to command topics without enforcing per-device topic permissions. Valid device credentials are required; accepted messages impersonate the cloud and can direct other managed devices.

The record

CVE
CVE-2024-46874
Published
Dec 6, 2024
Updated
Dec 6, 2024
Vendor
Ruijie Networks
Product
ReyeeOS
Classifications
CWE-280, T1071.005
Attack vector
network
Privileges
authenticated

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

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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 privilegesauthenticated

What is affected?

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

Published CVSS scores

8.1CISACVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
9.2CISACVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-280Improper Handling of Insufficient Permissions or Privileges
T1071.005Application Layer Protocol: Publish/Subscribe Protocols

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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