CVE-2026-116116— Yoosee GM8135S Camera Secure Boot signature verification

Quick assessment

Affected

Yoosee GM8135S Camera

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 Yoosee GM8135S 摄像头（固件版本 21.00.01.36）中发现一个漏洞，影响其安全启动（Secure Boot）组件中的某个未知功能。攻击者通过实施篡改操作，可导致密码学签名验证失效。该漏洞需本地访问才能利用，且利用方法现已公开，可被实际使用。厂商已在此漏洞披露初期被联系，但至今未作出任何回应。

CVSS 8.2 · High Updated Oct 26, 2026

Possible ATT&CK Techniques 2 AI

T1055.004 · Asynchronous Procedure Call T1548.002 · Bypass User Account Control

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Vulnerability Information

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Vulnerability Title

Yoosee GM8135S Camera Secure Boot signature verification

Source: CVE Program / CVE List V5

Vulnerability Description

A vulnerability was detected in Yoosee GM8135S Camera 21.00.01.36. Affected is an unknown function of the component Secure Boot. Performing a manipulation results in improper verification of cryptographic signature. The attack needs to be approached locally. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Source: CVE Program / CVE List V5

Vulnerability Type

密码学签名的验证不恰当

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
Yoosee	GM8135S Camera	21.00.01.36	`cpe:2.3:a:yoosee:gm8135s_camera::::::::`

II. Public POCs for CVE-2026-116116

#	POC Description	Source Link	Shenlong Link

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No public POC found.

III. Intelligence Information for CVE-2026-116116

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Other References for CVE-2026-116116 (4)

https://akosibrylle.me/writeups/yoosee-cve exploit
https://vuldb.com/vuln/426184/cti signature permissions-required
https://vuldb.com/cve/CVE-2026-116116 third-party-advisory
https://vuldb.com/submit/1004712 third-party-advisory

https://www.cve.org/CVERecord?id=CVE-2026-116116

Same Patch Batch · Yoosee · 2026-10-26 · 3 CVEs total

CVE-2026-116114	3.7 LOW	Yoosee GM8135S Camera Live UDP H.264 Video Stream npc cleartext transmission
CVE-2026-116115	3.1 LOW	Yoosee GM8135S Camera WiFi Configuration wpa_supplicantX.conf initialization

IV. Related Vulnerabilities

Same product: GM8135S Camera

Same vendor: Yoosee

Same weakness: CWE-347