CVE-2019-9590

Name of the Vulnerable Software and Affected Versions TENGCONTROL T-920 PLC version 5.5

Description An issue allows remote attackers to cause a denial of service, resulting in a persistent failure mode. This can be achieved by sending a series of specific requests, identified as UID 0x43, to the TCP port 502.

Recommendations For TENGCONTROL T-920 PLC version 5.5, as a temporary workaround, consider restricting access to TCP port 502 to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this issue.