Cyber Resilience

CVE-2024-5244

Tp-Link Omada Er605 Firmware 2.2.2

Published
23 May 2024
Modified
06 August 2025
CVSS Score v3.1 4.2
Click a component to see what it means
Raw vectorCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
EPSS Score 0.0034 27th percentile
Risk Priority 35 floored blend · peak EPSS

Summary

CVE-2024-5244 is a medium-severity Reliance on Security Through Obscurity (CWE-656) vulnerability in Tp-Link Omada Er605 Firmware. Its CVSS base score is 4.2 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique System Information Discovery (T1082); ranked at the 27th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to SA-8 (Security and Privacy Engineering Principles) and SC-13 (Cryptographic Protection) — see the control section below for these in your framework.

OWASP Top 10 for Web (2025)

A06:2025 Insecure Design

EU & UK References

Vulnerability Data

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…

more

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.

CWE(s)
CWE-656

Related Threats

MITRE ATT&CK Enterprise Techniques

T1082 System Information Discovery Discovery
An adversary may attempt to get detailed information about the operating system and hardware, including version, patches, hotfixes, service packs, and architecture.
attack.mitre.org →
T1083 File and Directory Discovery Discovery
Adversaries may enumerate files and directories or may search in specific locations of a host or network share for certain information within a file system.
attack.mitre.org →
T1592 Gather Victim Host Information Reconnaissance
Adversaries may gather information about the victim's hosts that can be used during targeting.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2024-1179Same product: Tp-Link Omada Er605
CVE-2024-1180Same product: Tp-Link Omada Er605
CVE-2024-5228Same product: Tp-Link Omada Er605
CVE-2024-25139Same product: Tp-Link Omada Er605
CVE-2024-5243Same product: Tp-Link Omada Er605
CVE-2024-5242Same product: Tp-Link Omada Er605
CVE-2024-5227Same product: Tp-Link Omada Er605
CVE-2026-42363Shared CWE-656
CVE-2025-7020Shared CWE-656
CVE-2025-59093Shared CWE-656

Affected Assets

tp-link
omada er605 firmware
2.2.2

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V6.3.4

Mitigating Controls (NIST 800-53 r5) AI

SC-13 Cryptographic Protection good match

Requires selection and implementation of approved cryptographic methods whose strength does not rest on secrecy of design.

SA-8 Security and Privacy Engineering Principles good match

Security and privacy engineering principles explicitly prohibit reliance on obscurity and require documented, verifiable protection mechanisms.

SC-28 Protection of Information at Rest good match

Requires cryptographic or equivalent protection of information at rest, eliminating dependence on obscurity for confidentiality.

SC-8 Transmission Confidentiality and Integrity good match

Mandates actual cryptographic or equivalent protection of transmitted data rather than depending on hidden algorithms or keys.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices explicitly reject obscurity-based designs in favor of proven controls.

GV.PO-01 partial match
prevents

Risk-management policy can mandate avoidance of obscurity but does not itself implement technical alternatives.

ID.RA-05 partial match
prevents

Risk analysis surfaces obscurity as a weakness yet does not prevent its introduction.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.24 Use of cryptography mostly match
prevents

Mandates use of cryptography whose strength is independent of secrecy of design or keys.

A.8.27 Secure system architecture and engineering principles mostly match
prevents

Requires secure architecture and engineering principles that reject reliance on obscurity.

A.8.5 Secure authentication mostly match
prevents

Requires authentication mechanisms whose strength does not depend on secrecy of implementation.

A.8.28 Secure coding partial match
prevents

Secure-coding rules prohibit hidden or undocumented security mechanisms.

A.8.29 Security testing in development and acceptance none match
detects

Security testing can expose mechanisms whose only protection is obscurity.

References