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CVE-2021-31643

5.4 · MEDIUM
Published Jun 1, 2021 chiyu-tech CWE-79 EPSS 88.45% (100th pctl)

Overview

CVE-2021-31643 is a medium-severity vulnerability affecting chiyu-tech bf-631_firmware. It was published on June 1, 2021 and has a CVSS 3.1 base score of 5.4 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.4, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical Description

An XSS vulnerability exists in several IoT devices from CHIYU Technology, including SEMAC, Biosense, BF-630, BF-631, and Webpass due to a lack of sanitization on the component if.cgi - username parameter.

Remediation

Check the references section for vendor advisories and patches from chiyu-tech. Update bf-631_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected Products

Vendor Product Versions Status

Frequently Asked Questions

What is CVE-2021-31643?

CVE-2021-31643 is a medium-severity vulnerability affecting chiyu-tech bf-631_firmware. It was published on June 1, 2021 and has a CVSS 3.1 base score of 5.4 (MEDIUM).

How severe is CVE-2021-31643?

This vulnerability has a CVSS 3.1 base score of 5.4, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2021-31643?

Check the references section for vendor advisories and patches from chiyu-tech. Update bf-631_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2021-31643?

CyberStrike's AI-powered security agents can automatically detect CVE-2021-31643 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.