CVE-2026-42542
High
Description
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductTdengine
PublishedJun 10, 2026
First seenJun 10, 2026
Weakness typeCWE-191CWE-191
How to fix
Update
- tdengine tdengine3.4.1.6 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| tdengine tdengine | 3.4.0.0 ≤ v < 3.4.1.6 | 3.4.1.6 |
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