CVE-2024-5244
TP-Link Omada ER605 Reliance on Security Through Obscurity Vulnerability
- Published
- May 23, 2024
- Updated
- Aug 1, 2024
- Assigning CNA
- zdi
- Evidence observed
- Aug 4, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:NLow · next 30 days
- Percentile
- 30.0%
- Model date
- Oct 17, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
TP-Link Omada ER605 Reliance on Security Through Obscurity Vulnerability. This vulnerability allows network-adjacent attackers to access or spoof DDNS messages on affected installations of TP-Link Omada ER605 routers. Authentication is not required to exploit this vulnerability. However, devices are vulnerable only if configured to use the Comexe DDNS service. The specific flaw exists within the cmxddnsd executable. The issue results from reliance on obscurity to secure network data. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of root. Was ZDI-CAN-22439.
Sources
Pre-authentication Remote Code Execution exploit for TP-Link Omada ER605 router via DDNS client daemon (cmxddnsd)
Responsible use
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