CVE-2026-35717

published 2026-06-02

CVE-2026-35717: A stack-based buffer overflow in the export_language.cgi binary in VIVOTEK FD8136 firmware FD8136-VVTK-0300a allows authenticated remote attackers to execute…

Priority P3 48 medium 6.3 CVSS 3.1

AV N AC L PR L UI N S U C L I L A L

A stack-based buffer overflow in the export_language.cgi binary in VIVOTEK FD8136 firmware FD8136-VVTK-0300a allows authenticated remote attackers to execute arbitrary code as root via a crafted POST request to the /cgi-bin/admin/export_language.cgi endpoint. The handler passes the attacker-controlled Content-Length value directly to fread() as the read size into a fixed-size 0x60-byte stack buffer, overwriting the saved link register. The binary is compiled without stack canaries.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
vivotek	fd8136_firmware	—	—

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CWE-121