Quick answers
- Is CVE-2026-30652 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-30652 being exploited in the wild.
- How severe is CVE-2026-30652?
- Informational severity, with a CVSS score of 8.8, published 2 June 2026.
- Which products and versions are affected?
- VIVOTEK FD8136 FD8136-VVTK-0300a.
- Is there a fix for CVE-2026-30652?
- 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-2026-30652 attacked?
- It is attacked over the network, in device firmware.
- Am I affected by CVE-2026-30652?
- Check whether you run VIVOTEK FD8136 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 set_getdido.cgi binary, which handles requests for the /cgi-bin/dido/setdo.cgi endpoint on Vivotek FD8136 cameras. The vulnerability occurs because the application reads the raw POST request body into a fixed-size stack buffer (approximately 196 bytes) without performing bounds checking. An authenticated attacker can exploit this by sending a POST body exceeding the buffer size, allowing them to overwrite the saved link register and redirect execution flow. The affected binary lacks stack canaries, facilitating straightforward exploitation to achieve root-level code execution.
Affected products
- Vivotek FD8136 FD8136-VVTK-0300a
Timeline
- 2026-05: other: Vulnerability discovered by Lewis Patten
- 2026-06-02: advisory: CVE-2026-30652 published by NVD/MITRE