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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.

PUBLISHED Reserved 2026-01-13 | Published 2026-03-23 | Updated 2026-03-24 | Assigner TPLink




HIGH: 8.6CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Problem types

CWE-306 Missing Authentication for Critical Function

Product status

Default status
unaffected

Any version before 1.3.0 Build 260309
affected

Default status
unaffected

Any version before 1.3.0 Build 260311
affected

Default status
unaffected

Any version before 1.4.0 Build 260311
affected

Default status
unaffected

Any version before < 1.5.0 Build 260309
affected

Default status
unaffected

Any version before 1.3.0 Build 260311
affected

Default status
unaffected

Any version before 1.3.0 Build 260309
affected

Default status
unaffected

Any version before 1.3.0 Build 260311
affected

Default status
unaffected

Any version before < 1.3.0 Build 260309
affected

Default status
unaffected

Any version before 1.3.0 Build 260311
affected

Default status
unaffected

Any version before 1.3.0 Build 260311
affected

Default status
unaffected

Any version before 1.8.0 Build 260311
affected

Credits

Saifeldeen Aziz from Cyshield finder

References

www.tp-link.com/en/support/download/archer-nx200/ patch

www.tp-link.com/en/support/download/archer-nx210/ patch

www.tp-link.com/en/support/download/archer-nx500/ patch

www.tp-link.com/en/support/download/archer-nx600/ patch

www.tp-link.com/us/support/faq/5027/ vendor-advisory

cve.org (CVE-2025-15517)

nvd.nist.gov (CVE-2025-15517)

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