What is CVE-2020-27558?

CVE-2020-27558 is a medium-severity vulnerability in Basetech Ge-131 Bt-1837836, classified under Improper Authentication. CVSS score: 6.5/10. Published 2020-11-17.

How severe is CVE-2020-27558?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Auth bypass in Basetech Ge-131 Bt-1837836

CVE-2020-27558

Use of an undocumented user in BASETech GE-131 BT-1837836 firmware 20180921 allows remote attackers to view the video stream.

Vulnerability class: Broken Authentication

Published 2020-11-17 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.011 (65.3th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 65.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

Basetech Ge-131 Bt-1837836
Basetech Ge-131 Bt-1837836 Firmware — versions 20180921

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

infosec.rm-it.de/2020/11/04/basetech-ip-camera-analysis/ (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-27558?: CVE-2020-27558 is a medium-severity vulnerability in Basetech Ge-131 Bt-1837836, classified under Improper Authentication. CVSS score: 6.5/10. Published 2020-11-17.
How severe is CVE-2020-27558?: Medium severity. CVSS v3 base score is 6.5 out of 10.