What is CVE-2020-8591?

CVE-2020-8591 is a critical-severity vulnerability in Eginnovations Eg Manager, classified under Improper Authentication. CVSS score: 9.8/10. Published 2020-02-03.

How severe is CVE-2020-8591?

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

Auth bypass in Eginnovations Eg Manager

CVE-2020-8591

eG Manager 7.1.2 allows authentication bypass via a com.egurkha.EgLoginServlet?uname=admin&upass=&accessKey=eGm0n1t0r request.

Vulnerability class: Broken Authentication

Published 2020-02-03 · 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: 0.014 (72.2th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 72.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000

Affected products

Eginnovations Eg Manager — versions 7.1.2

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

pyaefromucsp.blogspot.com/2020/02/eg-manager-v712improper-access-control_3.html (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-8591?: CVE-2020-8591 is a critical-severity vulnerability in Eginnovations Eg Manager, classified under Improper Authentication. CVSS score: 9.8/10. Published 2020-02-03.
How severe is CVE-2020-8591?: Critical severity. CVSS v3 base score is 9.8 out of 10.