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.
History

Tue, 02 Jun 2026 16:00:00 +0000

Type Values Removed Values Added
Title Authenticated Remote Code Execution via Buffer Overflow in export_language.cgi
First Time appeared Vivotek
Vivotek fd8136 Firmware
Weaknesses CWE-119
Vendors & Products Vivotek
Vivotek fd8136 Firmware

Tue, 02 Jun 2026 14:15:00 +0000

Type Values Removed Values Added
Description 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.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-06-02T14:04:12.895Z

Reserved: 2026-04-06T00:00:00.000Z

Link: CVE-2026-35717

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-06-02T14:16:51.123

Modified: 2026-06-02T14:47:59.300

Link: CVE-2026-35717

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-02T15:45:06Z