What is CVE-2021-22860?

CVE-2021-22860 is a critical-severity vulnerability in Eic E-Document System, classified under Improper Authentication. CVSS score: 9.8/10. Published 2021-03-17.

How severe is CVE-2021-22860?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Auth bypass in Eic E-Document System

CVE-2021-22860

EIC e-document system does not perform completed identity verification for sorting and filtering personnel data. The vulnerability allows remote attacker to obtain users’ credential information without logging in the system, and further acquire the privileged permissions and execute arbitrary commends.

Vulnerability class: Broken Authentication

Published 2021-03-17 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.026 (84.6th percentile), scored 2026-10-07.

Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 84.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.026 · newest: 0.026 · change: 0.000

Affected products

Eic E-Document System — versions 2.9, 3.0.2
Excellent Infotek Corporation E-Document System — versions 0 3.0.2, 0 2.9

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

www.twcert.org.tw/tw/cp-132-4518-c813c-1.html (Third Party Advisory)
gist.github.com/tonykuo76/17d497b3472a80a5e8914227e81e6fa3 (Third Party Advisory)
www.chtsecurity.com/news/12929036-924b-4b89-8a0e-3e7155e19011 (Third Party Advisory)

Frequently asked questions

What is CVE-2021-22860?: CVE-2021-22860 is a critical-severity vulnerability in Eic E-Document System, classified under Improper Authentication. CVSS score: 9.8/10. Published 2021-03-17.
How severe is CVE-2021-22860?: Critical severity. CVSS v3 base score is 9.8 out of 10.