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CVE-2026-110124— FastBee through 2.1.0 IDOR via DeviceController /iot/device Endpoints

Quick assessment

Affected
kerwincui FastBee
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.

FastBee 2.1.0 及之前版本中存在一个不安全直接对象引用（IDOR）漏洞，位于 DeviceController 组件中。该漏洞允许经过认证的低权限用户通过提供连续的设备 ID，读取和修改其他租户的设备信息。自注册的攻击者可以枚举 deviceId 或 serialNumber 值，以获取设备所有者、IP 地址和位置等数据，并通过覆盖 user_id 和 tenant_id 字段来接管这些设备。

CVSS 8.1 · High EPSS 0.30% · P22

Affected Version Matrix 1

VendorProduct Version RangeStatus
kerwincui FastBee ≤ 2.1.0 affected
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I. Basic Information for CVE-2026-110124

Vulnerability Information
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Vulnerability Title
FastBee through 2.1.0 IDOR via DeviceController /iot/device Endpoints
Source: CVE Program / CVE List V5
Vulnerability Description
FastBee through 2.1.0 contains an insecure direct object reference vulnerability in DeviceController that allows authenticated low-privilege users to read and modify other tenants' devices by supplying sequential device IDs. Self-registered attackers can enumerate deviceId or serialNumber values to read owner, IP, and location data, and overwrite user_id and tenant_id to take over devices.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
kerwincui FastBee 0 ~ 2.1.0 -

II. Public POCs for CVE-2026-110124

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III. Intelligence Information for CVE-2026-110124

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Patches & Fixes for CVE-2026-110124 (1)

Vendor Advisories for CVE-2026-110124 (1)

Security Blog Posts for CVE-2026-110124 (1)

Other References for CVE-2026-110124 (1)

IV. Related Vulnerabilities

Same product: FastBee
Same vendor: kerwincui
Same weakness: CWE-639

V. Comments for CVE-2026-110124

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