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CVE-2024-54887

HighPublished

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...

Published: Jan 9, 2025
Updated: Jul 5, 2026
Assigning CNA: mitre
Evidence observed: Aug 17, 2026

Primary CVSS

8.0/ 10High

nvd · CVSS 3.1

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

EPSS probability estimate

5.4%

Low · next 30 days

Percentile: 92.4%
Model date: Sep 21, 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 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.

Sources

CVE-2024-54887-PoCPoC
TypeScript PoC for CVE-2024-54887 (TP-Link TL-WR940N authenticated RCE)

Responsible use

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