CRITICAL

CVE-2021-43711

CVSS v3

9.8

CRITICAL

EPSS Score

20.0%

exploit probability

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

The downloadFlile.cgi binary file in TOTOLINK EX200 V4.0.3c.7646_B20201211 has a command injection vulnerability when receiving GET parameters. The parameter name can be constructed for unauthenticated command execution.

Technical details

Published
1/4/2022

Frequently asked questions

What is CVE-2021-43711?

The downloadFlile.cgi binary file in TOTOLINK EX200 V4.0.3c.7646_B20201211 has a command injection vulnerability when receiving GET parameters. The parameter name can be constructed for unauthenticated command execution.

Is CVE-2021-43711 actively exploited?

Active exploitation of CVE-2021-43711 has not been confirmed. The EPSS score is 20.0%, indicating the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-43711?

CVE-2021-43711 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2021-43711 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.

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