Vulnerability in TP-Link Archer Vx1800v

CVE-2026-15429

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.

Vulnerability class: CRLF Injection

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.014 (71.9th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 71.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-15429: rose from 0.008 to 0.014.

EPSS over last 30 days · oldest: 0.008 · newest: 0.014 · change: +0.005

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-15429?
CVE-2026-15429 is a high-severity vulnerability in TP-Link Archer Vx1800v, classified under CRLF Injection. CVSS score: 8.8/10. Published 2026-07-14.
How severe is CVE-2026-15429?
High severity. CVSS v3 base score is 8.8 out of 10.