What is CVE-2020-15055?

CVE-2020-15055 is a high-severity vulnerability in TP-Link Tl-Ps310u, classified under Improper Authentication. CVSS score: 8.8/10. Published 2020-08-07.

How severe is CVE-2020-15055?

High severity. CVSS v3 base score is 8.8 out of 10.

Auth bypass in TP-Link Tl-Ps310u

CVE-2020-15055

TP-Link USB Network Server TL-PS310U devices before 2.079.000.t0210 allow an attacker on the same network to bypass authentication via a web-administration request that lacks a password parameter.

Vulnerability class: Broken Authentication

Published 2020-08-07 · last modified 2026-06-17.

CVSS v3 metric

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

EPSS exploit prediction

EPSS: 0.009 (58.0th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 58.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

research.hisolutions.com/2020/05/critical-vulnerabilites-in-multiple-usb-networ… (Third Party Advisory, Broken Link)

Frequently asked questions

What is CVE-2020-15055?: CVE-2020-15055 is a high-severity vulnerability in TP-Link Tl-Ps310u, classified under Improper Authentication. CVSS score: 8.8/10. Published 2020-08-07.
How severe is CVE-2020-15055?: High severity. CVSS v3 base score is 8.8 out of 10.