CVEvulnerability

CVE-2021-31642

6.5 MEDIUM Published 2021-06-01 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-06-01
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 ([email protected])
6.8 MEDIUM — AV:N/AC:L/Au:S/C:N/I:N/A:C
Weaknesses
CWE-190

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.

Affected configurations

• chiyu-tech semac s2 firmware • chiyu-tech semac d1 firmware • chiyu-tech semac d2 firmware • chiyu-tech semac d4 firmware • chiyu-tech semac s3v3 firmware • chiyu-tech semac d2 n300 firmware • chiyu-tech semac s1 osdp firmware • chiyu-tech bf-631 firmware • chiyu-tech bf-630 firmware • chiyu-tech webpass firmware • chiyu-tech biosense firmware

Related

Weakness · CWE (1)

  • CWE-190 Integer Overflow or Wraparound weakness

References