What is CVE-2020-6091?

CVE-2020-6091 is a critical-severity vulnerability in Epson Eb-1470ui, classified under Authentication Bypass Using an Alternate Path or Channel. CVSS score: 9.1/10. Published 2020-05-22.

How severe is CVE-2020-6091?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Auth bypass in Epson Eb-1470ui

CVE-2020-6091

An exploitable authentication bypass vulnerability exists in the ESPON Web Control functionality of Epson EB-1470Ui MAIN: 98009273ESWWV107 MAIN2: 8X7325WWV303. A specially crafted series of HTTP requests can cause authentication bypass resulting in information disclosure. An attacker can send an HTTP request to trigger this vulnerability.

Published 2020-05-22 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.023 (82.6th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 82.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.023 · newest: 0.023 · change: 0.000

Affected products

Epson Eb-1470ui
Epson Eb-1470ui Firmware
Epson — versions Epson EB-1470Ui MAIN: 98009273ESWWV107 MAIN2: 8X7325WWV303

Weakness classification (CWE)

References

talosintelligence.com/vulnerability_reports/TALOS-2020-1011 (Third Party Advisory)
epson.com/support/wa00907

Frequently asked questions

What is CVE-2020-6091?: CVE-2020-6091 is a critical-severity vulnerability in Epson Eb-1470ui, classified under Authentication Bypass Using an Alternate Path or Channel. CVSS score: 9.1/10. Published 2020-05-22.
How severe is CVE-2020-6091?: Critical severity. CVSS v3 base score is 9.1 out of 10.