PT-2026-58111 · Tp Link Systems · Archer Vx1800V V1

Klamm9 · Published 2026-07-14 · Updated 2026-07-14 · CVE-2026-15429

Mitre

CVSS v4.0

5.1

Medium

Base vector

AV:A/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

A privilege escalation vulnerability exists in the HTTP authentication component in Archer VX1800v v1. Improper handling of user-controlled input may allow newline characters to be injected into internally constructed configuration data. 

An authenticated user with sufficient privileges may be able to modify account settings and gain elevated administrative privileges.

Fix

Weakness Enumeration

CWE-93

Related Identifiers

CVE-2026-15429

Affected Products

Archer Vx1800V V1

References · 3

• https://tp-link.com/us/support/faq/5189 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-15429 · Security Note
• https://tp-link.com/en/support/download/archer-vx1800v/#Firmware · Patch