CVE-2021-31251
Critical · 9.8CVSS
9.8
EPSS
35.7%
Published
Jun 4, 2021
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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