MQTT attacks & scanning (port 1883)
IoT messaging — unauthenticated topic subscription and enumeration.
Observed by OffSeq honeypot sensors · last 30 days · #23 most-attacked service · last seen 21 minutes ago
6,421
Attacks
1,273
Distinct source IPs
1883
Port · tcp
The #23 most-attacked service across the fleet in the last 30 days.
OffSeq honeypots emulating MQTT recorded 6,421 attacks from 1,273 distinct source IPs over the last 30 days. IoT messaging — unauthenticated topic subscription and enumeration.
Top CVEs exploited across the fleet (last 30 days)
Fleet-wide, not scoped to MQTT.
- CVE-2017-01442,731
- CVE-2019-07082,655
- CVE-2024-45771,682
- CVE-2021-268551,652
- CVE-2017-9841542
- CVE-2025-5777269
- CVE-2023-3519150
- CVE-2012-212283