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    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 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.

    Published:Jun 2, 2026
    Last Modified:Jun 3, 2026
    EPS:Jun 2, 2026
    EPSS Score:0.00053
    CVSS Score:6.3

    Affected Products

    Vendor
    Vivotek
    Product
    Fd8136
    Vendor
    Vivotek
    Product
    Fd8136 Firmware

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-121 Stack-based Buffer Overflow

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2026-30652 (CVSS 8.8) — A remote buffer overflow vulnerability exists in the /cgi-bin/dido/setdo.cgi endpoint of the admin interface o…
    CVE-2026-30649 (CVSS 7.3) — Buffer Overflow vulnerability in VIVOTEK INC FD8136-VVTK-0300a allows a remote attacker to execute arbitrary c…
    CVE-2026-35718 (CVSS 6.5) — A path traversal vulnerability in the /admin/downloadMedias.cgi endpoint of VIVOTEK INC FD8136-VVTK firmware 0…
    CVE-2026-30650 (CVSS 8.8) — A post-authentication remote buffer overflow vulnerability exists in the /cgi-bin/admin/eventtask.cgi endpoint…
    CVE-2018-14496 (CVSS 9.8) — Vivotek FD8136 devices allow remote memory corruption and remote code execution because of a stack-based buffe…
    CVE-2018-14495 (CVSS 9.8) — Vivotek FD8136 devices allow Remote Command Injection, aka "another command injection vulnerability in our tar…
    CVE-2018-14494 (CVSS 9.8) — Vivotek FD8136 devices allow Remote Command Injection, related to BusyBox and wget. NOTE: the vendor sent a cl…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High