A vulnerability, which was classified as critical , has been found in Vivotek FD8136 FD8136-VVTK-0300a . The impacted element is the function fread of the file export_language.cgi . Performing a manipulation results in stack-based buffer overflow. This vulnerability is known as CVE-2026-35717 . Remote exploitation of the attack is possible. No exploit is available. It is advisable to upgrade the affected component.