CVE-2026-33356
| Summary |
In Meari IoT Cloud MQTT Broker deployments running EMQX 4.x, any authenticated low-privilege account can subscribe to global wildcard topics and receive telemetry from devices the user does not own. The broker enforces publish restrictions but does not enforce equivalent subscribe authorization at per-device scope.
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| Publication Date |
May 12, 2026, 2:16 a.m. |
| Registration Date |
May 12, 2026, 4:14 a.m. |
| Last Update |
May 12, 2026, 2:16 a.m. |
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CVSS3.1 : HIGH
|
| スコア |
7.7
|
| Vector |
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N |
| 攻撃元区分(AV) |
ネットワーク |
| 攻撃条件の複雑さ(AC) |
低 |
| 攻撃に必要な特権レベル(PR) |
低 |
| 利用者の関与(UI) |
不要 |
| 影響の想定範囲(S) |
変更あり |
| 機密性への影響(C) |
高 |
| 完全性への影響(I) |
なし |
| 可用性への影響(A) |
なし |
Related information, measures and tools
Common Vulnerabilities List