CVE-2021-31642

Katalog CVE

CVSS 6.5 · Medium EPSS 43,7%

Kerentanan Integer Overflow or Wraparound pada chiyu-tech semac s2 firmware, chiyu-tech semac d1 firmware +9 lainnya. Skor CVSS 3.1 6.5 (Medium) menurut NVD.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

1 Juni 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

6.5 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-190: Integer Overflow or Wraparound

EPSS (30 hari)

43,7% peluang dieksploitasi; lebih tinggi dari 98,7% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://www.chiyu-tech.com/msg/message-Firmware-update-87.html advisory vendor
• http://packetstormsecurity.com/files/162934/CHIYU-IoT-Denial-Of-Service.html exploit · advisory pihak ketiga · vdb entry
• https://gitbook.seguranca-informatica.pt/cve-and-exploits/cves/chiyu-iot-devices#cve-2021-31642 exploit · advisory pihak ketiga
• https://seguranca-informatica.pt/dancing-in-the-iot-chiyu-devices-vulnerable-to-remote-attacks/ exploit · advisory pihak ketiga