Critical severity9.8NVD Advisory· Published Jan 4, 2022· Updated Jun 17, 2026

CVE-2021-43711

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Totolink/Ex200 Firmware
cpe:2.3:o:totolink:ex200_firmware:4.0.3c.7646_b20201211:*:*:*:*:*:*:*
Totolink/EX200cpe-rescue2 versions
(expand)+ 1 more
- (no CPE)
- (no CPE)range: 4.0.3c.7646_B20201211

Patches

Vulnerability mechanics

References

github.com/doudoudedi/ToTolink_EX200_Cmmand_Execute/blob/main/ToTolink%20EX200%20Comand%20Injection2.mdnvdExploitThird Party Advisory

News mentions

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cvss	0.637
epss	0.030
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000