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CVE-2021-43711

CRITICALCVSS 9.8/10EPSS 36.27%

Last modified

CVE-2021-43711 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 36.27% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
9.8/10

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

EPSS Probability
36.27%

98.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
TotolinkEx200 Firmware4.0.3c.7646_b20201211

References

Timeline

Published
Last Modified
Status
Modified

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.
How severe is CVE-2021-43711?
CVE-2021-43711 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 36.27% probability of exploitation in the next 30 days.
How do I fix CVE-2021-43711?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-43711?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST