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

Wed, 03 Jun 2026 18:45:00 +0000

Type Values Removed Values Added
First Time appeared Vivotek fd8136
CPEs cpe:2.3:h:vivotek:fd8136:-:*:*:*:*:*:*:*
cpe:2.3:o:vivotek:fd8136_firmware:0300a:*:*:*:*:*:*:*
Vendors & Products Vivotek fd8136

Wed, 03 Jun 2026 17:45:00 +0000

Type Values Removed Values Added
Title Authenticated Remote Code Execution via Stack Overflow in VIVOTEK FD8136 Export Language CGI

Wed, 03 Jun 2026 16:15:00 +0000

Type Values Removed Values Added
Title Authenticated Remote Code Execution via Buffer Overflow in export_language.cgi
Weaknesses CWE-119

Wed, 03 Jun 2026 14:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-121
Metrics cvssV3_1

{'score': 6.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


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: 2026-06-02T00:00:00.000Z

Updated: 2026-06-03T13:43:23.776Z

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

Link: CVE-2026-35717

cve-icon Vulnrichment

Updated: 2026-06-03T13:43:18.147Z

cve-icon NVD

Status : Analyzed

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

Modified: 2026-06-03T18:42:05.617

Link: CVE-2026-35717

cve-icon Redhat

No data.