high7.5
CVE-2026-42542
TDengine is an open source, time-series database optimized for Internet of Things devices.
Impact
TDengine is an open source, time-series database optimized for Internet of Things devices. In versions 3.4.0.0 through 3.4.1.5, an unauthenticated remote attacker can crash the taosd server process by sending a single crafted RPC packet. No credentials or prior session state are required. Version 3.4.1.6 fixes the issue.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Tdengine | Tdengine | from 3.4.0.0 before 3.4.1.6 |