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CVE-2026-111654— FastBee through 2.1.0 IDOR via /iot/group By-ID 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 及更早版本存在不安全的直接对象引用漏洞。由于 中的查询缺少所有者检查，已认证的低权限用户可以访问其他用户的设备组。攻击者（包括自行注册的用户）可通过提供连续的设备组 ID，读取、覆盖、重新分配、修改或删除其他用户设备组的设备关联信息。

CVSS 6.3 · Medium EPSS 0.25% · P16

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 1

VendorProduct Version RangeStatus
kerwincui FastBee ≤ 2.1.0 affected
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I. Basic Information for CVE-2026-111654

Vulnerability Information
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Vulnerability Title
FastBee through 2.1.0 IDOR via /iot/group By-ID Endpoints
Source: CVE Program / CVE List V5
Vulnerability Description
FastBee through 2.1.0 contains an insecure direct object reference vulnerability that allows authenticated low-privilege users to access other users' device groups because GroupController queries lack owner checks. Attackers, including self-registered users, can supply sequential group IDs to read, overwrite, reassign, rewrite device associations of, or delete other users' groups.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
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-2026-111654

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-111654

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Vendor Advisories for CVE-2026-111654 (1)

Proof of Concept for CVE-2026-111654 (1)

Other References for CVE-2026-111654 (2)

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-111654

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