CVE-2024-54887

8.0 HIGH 7% exploit odds No fix listed Memory safety Network gear

What it is

TP-Link TL-WR940N V3 and V4 with firmware 3.16.9 and earlier contain a buffer overflow via the dnsserver1 and dnsserver2 parameters at /userRpm/Wan6to4TunnelCfgRpm.htm. This vulnerability allows an authenticated attacker to execute arbitrary code on the remote device in the context of the root user.

At a glance

Exploitability: Can be exploited from the same network segment with a low-privilege account. High risk of data exposure, data tampering, service disruption.
Exploit odds: 6.6% chance of exploitation in the next 30 days (EPSS).
Fix: No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

2025-01-09 20:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-07-05 01:21 UTC Last updatedMost recent change to the record

Details

Published: 2025-01-09 20:15 UTC
Last modified: 2026-07-05 01:21 UTC
Exploit probability: 6.6% · EPSS, next 30 days
Weakness: CWE-120 · Classic buffer overflow
Record status: Modified

Affected

TP-Link tl-wr940n Firmware ≤ 3.16.9

Attack profile CVSS 3.1 · 8.0

Attack vector: Adjacent network
Complexity: Low
Privileges needed: Low
User interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: High
Availability: High

Raw vector

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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References

https://github.com/JBince/vulnerability-research/tree/main/CVE-2024-54887

NVD record · CVE.org record