CVE-2026-42542
TDengine has an integer underflow in uvConnMayGetUserInfo() allows unauthenticated remote crash (DoS)
- State
- Published
- Severity
- 7.5 High
- Published
- Jun 10, 2026
- Updated
- Jun 11, 2026
- Reserved
- Apr 28, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | GitHub_M |
Weaknesses
- CWE-191 Integer Underflow (Wrap or Wraparound)
Affected Products
| Product | Versions |
|---|---|
TDenginetaosdata |
|
References
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