How severe is CVE-2024-5243?

CVE-2024-5243 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over an adjacent network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2024-5243 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-5243?

CVE-2024-5243 affects Tp-link Omada Er605 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-5243?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2024-5243 have an EU (EUVD) identifier?

Yes. CVE-2024-5243 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-46482.

When was CVE-2024-5243 published?

CVE-2024-5243 was published on 2024-05-23 and last updated on 2026-06-17.

CVE-2024-5243

CVE-2024-5243 is a high-severity vulnerability in Tp-link Omada Er605 Firmware with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-120.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (53rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-46482
Weakness: CWE-120
Affected product: Tp-link Omada Er605 Firmware
Published: 2024-05-23
Last modified: 2026-06-17

Description

TP-Link Omada ER605 Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code 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 handling of DNS names. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-22523.

Frequently asked questions

What is CVE-2024-5243?: TP-Link Omada ER605 Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code 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 handling of DNS names. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-22523.
How severe is CVE-2024-5243?: CVE-2024-5243 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over an adjacent network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2024-5243 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-5243?: CVE-2024-5243 affects Tp-link Omada Er605 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-5243?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2024-5243 have an EU (EUVD) identifier?: Yes. CVE-2024-5243 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-46482.
When was CVE-2024-5243 published?: CVE-2024-5243 was published on 2024-05-23 and last updated on 2026-06-17.

References

https://www.zerodayinitiative.com/advisories/ZDI-24-502/

Affected products (1)

cpe:2.3:o:tp-link:omada_er605_firmware:2.2.2:build_20231017:*:*:*:*:*:*

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