CVE-2021-20776

Published: Jul 7, 2021Modified: Jun 17, 2026

9.8

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability: 3.9 / Impact: 5.9

Source: NVD

Description

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

Affected (2)

Products: A Stage Inc: At 40cm01sr Firmware, Sct 40cm01sr Firmware

A Stage Inc

2 products

At 40cm01sr Firmware

Sct 40cm01sr Firmware

Configuration A

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
A Stage Inc At 40cm01sr Firmware	All versions

Running on/with	Platform Versions
A Stage Inc At 40cm01sr	All versions

Configuration B

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
A Stage Inc Sct 40cm01sr Firmware	All versions

Running on/with	Platform Versions
A Stage Inc Sct 40cm01sr	All versions

Related CWEs

CWE-287

Improper Authentication

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

References (2)

https://jvn.jp/en/jp/JVN21636825/index.html

Source: vultures@jpcert.or.jp

Third Party Advisory

https://jvn.jp/en/jp/JVN21636825/index.html

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

Timeline

No history available yet.