CyberRota Analysis
This is a critical severity vulnerability with a CVSS score of 9.8. Its EPSS score suggests a 35.7% probability of exploitation in the next 30 days. It may be remotely exploitable.
CVE
CVE-2021-31251
Severity
CRITICAL
CVSS
9.8
EPSS
35.71%
Original NVD Description
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.
Related CVEs
Other vulnerabilities affecting the same vendor(s)