Vulnerability · Published Feb 5, 2026 · Assigned by TPLink

CVE-2025-15551LAN Code Execution on TP-Link Archer MR200, Archer C20, TL-WR850N and TL-WR845N

Medium 5.9

In plain English

A medium-severity security flaw in Archer C20 v5 from TP-Link Systems Inc.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 38% of all known vulnerabilities).

Severity (CVSS 4.0)5.9Medium

Exploit odds (30 days)0.4%top 61.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

The response coming from TP-Link Archer MR200 v5.2, C20 v5 and v6, TL-WR850N v3, and TL-WR845N v4 for any request is getting executed by the JavaScript function like eval directly without any check. Attackers can exploit this vulnerability via a Man-in-the-Middle (MitM) attack to execute JavaScript code on the router's admin web portal without the user's permission or knowledge.

Affected products (as reported)

Vendor	Product	Versions
TP-Link Systems Inc.	Archer MR200 v5.2	0 – before 1.2.0 Build 250917 Rel.51746
TP-Link Systems Inc.	Archer C20 v6	0 – before 0.9.1 4.19 v0001.0 Build 250630 Rel.56583n
TP Link Systems Inc.	TL-WR850N v3	0 – before 3.16.0 0.9.1 v6031.0 Build 251205 Rel.22089n
TP Link Systems Inc.	TL-WR845N v4	0 – before 0.9.1 3.19 Build 251031 rel33710
TP-Link Systems Inc.	Archer C20 v5	0 – before US_V5_2604190 – before EU_V5_260317

Weakness: CWE-95 · Vector: CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:P/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N

In plain English

Official description

Affected products (as reported)

References