Is CVE-2026-35716 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-35716 being exploited in the wild.

How severe is CVE-2026-35716?

Informational severity, with a CVSS score of 8.8, published 2 June 2026.

Which products and versions are affected?

VIVOTEK FD8136 firmware FD8136-VVTK-0300a.

Is there a fix for CVE-2026-35716?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-35716 attacked?

It is attacked over the network, in device firmware.

Am I affected by CVE-2026-35716?

Check whether you run VIVOTEK FD8136 firmware at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-35716: VIVOTEK FD8136 stack buffer overflow in motion_privacy.cgi

CVE-2026-35716 · Severity: info · CVSS 8.8 · Published 2026-06-02

A security vulnerability exists in VIVOTEK FD8136 network cameras, which are used for professional video surveillance. An attacker with valid login credentials can send a specially crafted web request to the camera to take full control of the device. This could allow an unauthorized user to view private video feeds, disable security monitoring, or use the camera as a foothold to attack other parts of the corporate network.

Vendors: VIVOTEK.

Quick answers

Is CVE-2026-35716 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-35716 being exploited in the wild.
How severe is CVE-2026-35716?: Informational severity, with a CVSS score of 8.8, published 2 June 2026.
Which products and versions are affected?: VIVOTEK FD8136 firmware FD8136-VVTK-0300a.
Is there a fix for CVE-2026-35716?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-35716 attacked?: It is attacked over the network, in device firmware.
Am I affected by CVE-2026-35716?: Check whether you run VIVOTEK FD8136 firmware at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A stack-based buffer overflow exists in the motion_privacy.cgi binary within VIVOTEK FD8136 firmware version FD8136-VVTK-0300a. The vulnerability is triggered when processing POST requests to the /cgi-bin/admin/setpm.cgi, /cgi-bin/admin/setmd.cgi, or /cgi-bin/admin/setmd_profile.cgi endpoints. The application fails to perform bounds checking when copying the 'n1' parameter into a fixed-size 0xa4-byte stack buffer. Because the binary is compiled without stack canaries, an authenticated attacker can overwrite the saved link register to redirect control flow and execute arbitrary code with root privileges.

Affected products

VIVOTEK FD8136 firmware FD8136-VVTK-0300a

Timeline

2026-05: disclosed: Discovered by Lewis Patten
2026-06-02: advisory: CVE published to NVD

References

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