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Vulnerability · Published Mar 23, 2026 · Assigned by TPLink

CVE-2025-15517Authorization Bypass in HTTP Server Endpoints on TP-Link Archer NX200, NX210, NX500 and NX600

High 8.6

In plain English

A high-severity missing authentication in Archer NX200 v1.0 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 3.1% (higher than 88% of all known vulnerabilities).

Severity (CVSS 4.0)8.6High
Exploit odds (30 days)3.1%top 12.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A missing authentication check in the HTTP server on TP-Link Archer NX200, NX210, NX500 and NX600 to certain cgi endpoints allows unauthenticated access intended for authenticated users. An attacker may perform privileged HTTP actions without authentication, including firmware upload and configuration operations.

Affected products (as reported)

VendorProductVersions
TP-Link Systems Inc. Archer NX600 v3.0 0 – before 1.3.0 Build 260309
TP-Link Systems Inc. Archer NX600 v2.0 0 – before 1.3.0 Build 260311
TP-Link Systems Inc. Archer NX600 v1.0 0 – before 1.4.0 Build 260311
TP-Link Systems Inc. Archer NX500 v2.0 0 – before < 1.5.0 Build 260309
TP-Link Systems Inc. Archer NX500 v1.0 0 – before 1.3.0 Build 260311
TP-Link Systems Inc. Archer NX210 v3.0 0 – before 1.3.0 Build 260309
TP-Link Systems Inc. Archer NX210 v2.0 v2.20 0 – before 1.3.0 Build 260311
TP-Link Systems Inc. Archer NX200 v3.0 0 – before < 1.3.0 Build 260309
TP-Link Systems Inc. Archer NX200 v2.20 0 – before 1.3.0 Build 260311
TP-Link Systems Inc. Archer NX200 v2.0 0 – before 1.3.0 Build 260311
TP-Link Systems Inc. Archer NX200 v1.0 0 – before 1.8.0 Build 260311

Weakness: CWE-306 · Vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

References