VendorsChiyu-techsemac_s2_firmwareany version
Vulnerabilities

Chiyu-tech Chiyu Technology SEMAC S2 Firmware any version

Ranked by severity, then by exploit likelihood. Click a CVE ID for its full record.

5CVEs
CVE-2021-31251
An authentication bypass in telnet server in BF-430 and BF431 232/422 TCP/IP Converter, BF-450M and SEMAC from CHIYU Technology Inc allows obtaining a privileged connection with the target device by supplying a specially malformed request and an attacker may force the remote telnet server to believe that the user has already authenticated.
Published 2021-06-04 · Modified
9.81 PoCEPSS 0.357
CVE-2021-31642
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.
Published 2021-06-01 · Modified
6.81 PoCEPSS 0.437
CVE-2021-31252
An open redirect vulnerability exists in BF-630, BF-450M, BF-430, BF-431, BF631-W, BF830-W, Webpass, and SEMAC devices from CHIYU Technology that can be exploited by sending a link that has a specially crafted URL to convince the user to click on it.
Published 2021-06-04 · Modified
6.1EPSS 0.286
CVE-2021-31641
An unauthenticated XSS vulnerability exists in several IoT devices from CHIYU Technology, including BF-630, BF-450M, BF-430, BF-431, BF631-W, BF830-W, Webpass, BF-MINI-W, and SEMAC due to a lack of sanitization when the HTTP 404 message is generated.
Published 2021-06-01 · Modified
6.1EPSS 0.051
CVE-2021-31643
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.
Published 2021-06-01 · Modified
5.4EPSS 0.885