What is CVE-2025-15543?

CVE-2025-15543 is a medium-severity vulnerability in TP-Link Vx800v, classified under Improper Link Resolution Before File Access. CVSS score: 4.6/10. Published 2026-01-29.

How severe is CVE-2025-15543?

Medium severity. CVSS v3 base score is 4.6 out of 10.

Vulnerability in TP-Link Vx800v

CVE-2025-15543

Improper link resolution in USB HTTP access path in VX800v v1.0 allows a crafted USB device to expose root filesystem contents, giving an attacker with physical access read‑only access to system files.

Published 2026-01-29 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.6 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.002 (10.6th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 11th percentile — 10.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000

Affected products

TP-Link Vx800v — versions 1.0
TP-Link Vx800v Firmware
TP-Link Systems Inc. Vx800v V1.0 — versions 0

Weakness classification (CWE)

CWE-59 — Improper Link Resolution Before File Access

References

f23511db-6c3e-4e32-a477-6aa17d310630 (Product, patch)
f23511db-6c3e-4e32-a477-6aa17d310630 (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2025-15543?: CVE-2025-15543 is a medium-severity vulnerability in TP-Link Vx800v, classified under Improper Link Resolution Before File Access. CVSS score: 4.6/10. Published 2026-01-29.
How severe is CVE-2025-15543?: Medium severity. CVSS v3 base score is 4.6 out of 10.