VULNERABILITY INTELLIGENCE

CVE-2021-31642

CVSS score6.5 MEDIUM
EPSS probability43.67%
CISA KEVNot currently listed
Published2021-06-01
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Description

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.

Weakness classification

  • nvd@nist.gov: CWE-190

Primary references