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CVE-2021-31642
MEDIUM · CVSS 6.5
EPSS exploitation probability: 0%
Published 2021-06-01T15:15:07.717 · Last modified 2026-06-17T03:52:06.587

Summary

A denial of service condition exists after an integer overflow in several IoT devices from CHIYU Technology, including BIOSENSE, Webpass, and BF-630, BF-631, and SEMAC. The vulnerability can be explored by sending an unexpected integer (> 32 bits) on the page parameter that will crash the web portal and making it unavailable until a reboot of the device.

Affected products

chiyu-tech — semac_s2_firmware

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.