Auth bypass in A-Stage Inc. Sct-40cm01sr And At-40cm01sr

CVE-2021-20776

Improper authentication vulnerability in SCT-40CM01SR and AT-40CM01SR allows an attacker to bypass access restriction and execute an arbitrary command via telnet.

Vulnerability class: Broken Authentication

Published · last modified .

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: 0.013 (69.3th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 69.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2021-20776: held from 0.013 to 0.013.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-20776?
CVE-2021-20776 is a critical-severity vulnerability in A-Stage Inc. Sct-40cm01sr And At-40cm01sr, classified under Improper Authentication. CVSS score: 9.8/10. Published 2021-07-07.
How severe is CVE-2021-20776?
Critical severity. CVSS v3 base score is 9.8 out of 10.