What is CVE-2020-27555?

CVE-2020-27555 is a critical-severity vulnerability in Basetech Ge-131 Bt-1837836, classified under Initialization of a Resource with an Insecure Default. CVSS score: 9.8/10. Published 2020-11-17.

How severe is CVE-2020-27555?

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

RCE in Basetech Ge-131 Bt-1837836

CVE-2020-27555

Use of default credentials for the telnet server in BASETech GE-131 BT-1837836 firmware 20180921 allows remote attackers to execute arbitrary system commands as the root user.

Published 2020-11-17 · 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: 0.025 (84.3th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 84.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.025 · newest: 0.025 · change: 0.000

Affected products

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

Weakness classification (CWE)

CWE-1188 — Initialization of a Resource with an Insecure Default

References

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

Frequently asked questions

What is CVE-2020-27555?: CVE-2020-27555 is a critical-severity vulnerability in Basetech Ge-131 Bt-1837836, classified under Initialization of a Resource with an Insecure Default. CVSS score: 9.8/10. Published 2020-11-17.
How severe is CVE-2020-27555?: Critical severity. CVSS v3 base score is 9.8 out of 10.