Missing Authentication Check in TP-Link Archer Routers
CVE-2025-15517

8.6HIGH

Key Information:

Vendor

Tp-link Systems Inc.

Status
Archer Nx600 V3.0
Archer Nx600 V2.0
Archer Nx600 V1.0
Archer Nx500 V2.0
Vendor
CVE Published:
23 March 2026

What is CVE-2025-15517?

A flaw in the HTTP server of TP-Link Archer NX200, NX210, NX500, and NX600 routers allows for unauthorized access to certain CGI endpoints, which should only be accessible to authenticated users. Attackers can exploit this vulnerability to perform privileged actions, including uploading firmware and modifying configurations, without needing to authenticate.

Affected Version(s)

Archer NX200 v1.0 Linux 0 < 1.8.0 Build 260311

Archer NX200 v2.0 Linux 0 < 1.3.0 Build 260311

Archer NX200 v2.20 Linux 0 < 1.3.0 Build 260311

References

https://www.tp-link.com/en/support/download/archer-nx200/...
patch
https://www.tp-link.com/en/support/download/archer-nx210/...
patch
https://www.tp-link.com/en/support/download/archer-nx500/...
patch

CVSS V4

Score:
8.6
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
None
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Saifeldeen Aziz from Cyshield
.