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VulnerabilityPublished

CVE-2023-53881: Ruijie ReyeeOS · Cleartext Transmission

Affects Ruijie ReyeeOSSource CVE Database V5

0

Not known to be exploited · CVSS 9.2 Critical.

Data as of 26 Oct 2026, 14:05 UTC

CVSS 4.0 base score
9.2Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 23% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 15 Dec 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Ruijie ReyeeOSAffected
  • =1.204.1614
Fixed in–

AI-suggested

  1. Immediate action should be taken to monitor Ruijie ReyeeOS devices for unusual CWMP traffic patterns indicative of MitM attacks or unauthorized command injections.
  2. Network segmentation should be implemented to isolate management traffic from general network traffic, reducing exposure to attackers.
  3. Deploy network-level protections such as TLS interception prevention, strict firewall rules, and intrusion detection systems tuned to detect anomalous CWMP communications.
  4. Disable or restrict CWMP management interfaces if not required, or limit access to trusted management networks only.
  5. Engage with Ruijie for official patches or firmware updates addressing this vulnerability and apply them promptly once available.
  6. Consider deploying endpoint detection and response (EDR) solutions on network devices if supported, to detect abnormal behavior.
  7. Conduct regular security audits and penetration tests focusing on network management protocols to identify similar weaknesses.
  8. Educate network administrators about the risks of unencrypted management protocols and best practices for secure device management.

Description

CVE-2023-53881 is a critical vulnerability in Ruijie ReyeeOS version 1.204.1614 involving unencrypted CWMP communication. This flaw allows attackers to perform man-in-the-middle attacks by intercepting and manipulating HTTP polling requests between devices and the cloud management server. Exploiting this, attackers can impersonate the CWMP server, injecting and executing arbitrary commands on affected devices without authentication or user interaction. The vulnerability poses a severe risk to confidentiality, integrity, and availability of network devices managed by ReyeeOS. European organizations using Ruijie ReyeeOS devices, especially in sectors relying on network infrastructure, are at significant risk. Mitigation requires immediate patching once available, network segmentation, and monitoring for anomalous CWMP traffic. Countries with higher Ruijie market presence and critical infrastructure deployments, such as Germany, France, and the UK, are most likely to be impacted. Given the high CVSS score of 9.

References

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