TI-2026-27780 Aliases CVE-2026-35716 GHSA-pj36-9w4r-h2r4

A stack-based buffer overflow in the motion_privacy.cgi binary in VIVOTEK FD8136 firmware…

LOW 30CWE-121Published 2026-06-02 · Updated 2026-07-05

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: Low · Low · Low
Fix status: No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.

Summary

A stack-based buffer overflow in the motion_privacy.cgi binary in VIVOTEK FD8136 firmware FD8136-VVTK-0300a allows authenticated remote attackers to execute arbitrary code as root via an oversized n1 parameter in a POST request to the /cgi-bin/admin/setpm.cgi, /cgi-bin/admin/setmd.cgi, or /cgi-bin/admin/setmd_profile.cgi endpoint (all symlinks to the same binary). The parameter value is copied into a fixed-size 0xa4-byte stack buffer without bounds checking, overwriting the saved link register. The binary is compiled without stack canaries.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00322 25th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:o:vivotek:fd8136_firmware:0300a:::::::*	0300a	Vulnerable	Vivotek
cpe:2.3:h:vivotek:fd8136:-:::::::*	not specified by NVD	Running on	Vivotek

cpe:2.3:o:vivotek:fd8136_firmware:0300a:*:*:*:*:*:*:* Versions 0300a Vulnerable ·Vivotek
cpe:2.3:h:vivotek:fd8136:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Vivotek

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-35716
2026-10-03 Alias added: GHSA-pj36-9w4r-h2r4

References

Advisory 1

https://github.com/xchg-rax-rax/vulnerability-research/tree/main/CVE-2026-35716

TI-2018-10396 Vivotek FD8136 devices allow Remote Command Injection, aka "another command injection… CVSS 3.0CRITICAL 9.8
TI-2018-10397 Vivotek FD8136 devices allow remote memory corruption and remote code execution because… CVSS 3.0CRITICAL 9.8
TI-2018-10395 Vivotek FD8136 devices allow Remote Command Injection, related to BusyBox and wget. CVSS 3.0CRITICAL 9.8
TI-2026-23597 A remote buffer overflow vulnerability exists in the /cgi-bin/dido/setdo.cgi endpoint of… CVSS 3.1HIGH 8.8
TI-2026-23596 A post-authentication remote buffer overflow vulnerability exists in the… CVSS 3.1HIGH 8.8
TI-2026-23595 Buffer Overflow vulnerability in VIVOTEK INC FD8136-VVTK-0300a allows a remote attacker… CVSS 3.1HIGH 7.3

See all 8 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences