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CVE-2026-9221— Setracker2 Children's Smartwatch Ecosystem Use of a Broken or Risky Cryptographic Algorithm

Quick assessment

Affected
Shenzhen i365-Tech Co. Ltd. Setracker2 Parental Control App (Android) package com.tgelec.setracker
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.

Shenzhen i365-Tech Setracker2 Parental Control App是Shenzhen i365-Tech公司的一款家长控制应用。 Shenzhen i365-Tech Setracker2 Parental Control App 3.1.5及之前版本存在加密问题漏洞，该漏洞源于使用MD5生成请求签名，可能导致攻击者反转签名以恢复会话ID，从而冒充合法用户并发出经过身份验证的API请求。

CVSS 7.5 · High EPSS 0.26% · P18

Affected Version Matrix 2

VendorProduct Version RangeStatus
Shenzhen i365-Tech Co. Ltd. Setracker2 Parental Control App (Android) package com.tgelec.setracker ≤ 3.1.5 affected
3.4.1 unaffected
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I. Basic Information for CVE-2026-9221

Vulnerability Information
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Vulnerability Title
Setracker2 Children's Smartwatch Ecosystem Use of a Broken or Risky Cryptographic Algorithm
Source: CVE Program / CVE List V5
Vulnerability Description
The Setracker2 Android Companion App (com.tgelec.setracker) versions 3.1.5 and earlier uses MD5 to generate a request signature for authenticating communications between the mobile client and the backend REST API. Attackers could potentially reverse the signature to recover the session ID. With the session ID exposed, an attacker could impersonate the legitimate user and issue authenticated API requests.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用已被攻破或存在风险的密码学算法
Source: CVE Program / CVE List V5
Vulnerability Title
Shenzhen i365-Tech Setracker2 Parental Control App 加密问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Shenzhen i365-Tech Setracker2 Parental Control App是Shenzhen i365-Tech公司的一款家长控制应用。 Shenzhen i365-Tech Setracker2 Parental Control App 3.1.5及之前版本存在加密问题漏洞，该漏洞源于使用MD5生成请求签名，可能导致攻击者反转签名以恢复会话ID，从而冒充合法用户并发出经过身份验证的API请求。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Shenzhen i365-Tech Co. Ltd. Setracker2 Parental Control App (Android) package com.tgelec.setracker 0 ~ 3.1.5 -

II. Public POCs for CVE-2026-9221

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-9221

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Vendor Advisories for CVE-2026-9221 (1)

Same Patch Batch · Shenzhen i365-Tech Co. Ltd. · 2026-06-25 · 4 CVEs total

CVE-2026-9222 8.1 HIGH Setracker2 Children's Smartwatch Ecosystem Use of password hash instead of password for au
CVE-2026-9220 7.5 HIGH Setracker2 Children's Smartwatch Ecosystem Use of hard-coded cryptographic key
CVE-2026-9219 6.5 MEDIUM Setracker2 Children's Smartwatch Ecosystem Generation of Predictable Numbers or Identifier

IV. Related Vulnerabilities

Same product: Setracker2 Parental Control App (Android) package com.tgelec.setracker
Same vendor: Shenzhen i365-Tech Co. Ltd.
Same weakness: CWE-327

V. Comments for CVE-2026-9221

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