VulnerabilityAnalyzed

CVE-2026-15429

A privilege escalation vulnerability exists in the HTTP authentication component in Archer VX1800v v1.

MEDIUM 5.1EPSS 0.84%

Does this matter?

Lower severity and a low EPSS score (0.84%). Track it; it rarely justifies an emergency change on its own.

Description

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.

CVSS 4.0: 5.1 MEDIUMCVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
EPSS: 0.84% probability · 56th percentile
CISA KEV: Not listed
Weakness: CWE-93
Affected: tp-link/archer vx1800v firmware
Source: f23511db-6c3e-4e32-a477-6aa17d310630

References

https://www.tp-link.com/en/support/download/archer-vx1800v/#FirmwareProduct
https://www.tp-link.com/us/support/faq/5189/Vendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.