What’s Vulnerable › Vulnerabilities

CVE-2021-43711

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 37.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-01-04 · updated 2026-06-17
• Weakness: CWE-77

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.

Affected products

• TOTOLINK EX200: 4.0.3c.7646_b20201211

References

• https://github.com/doudoudedi/ToTolink_EX200_Cmmand_Execute/blob/main/ToTolink%20EX200%20Comand%20Injection2.md
• https://github.com/doudoudedi/ToTolink_EX200_Cmmand_Execute/blob/main/ToTolink%20EX200%20Comand%20Injection2.md

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