CVE-2026-42542

HighCVSS 7.5/10Last modified Jul 23, 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.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-191

Affected software

Vendor	Product	Versions
taosdata	TDengine	>= 3.4.0.0, < 3.4.1.6

References

https://github.com/taosdata/TDengine/releases/tag/ver-3.4.1.6Product, Release Notes
https://github.com/taosdata/TDengine/security/advisories/GHSA-vg95-j2hf-hvjxExploit, Mitigation, Vendor Advisory

Timeline

Published: Jun 10, 2026
Last modified: Jul 23, 2026
NVD status: Analyzed

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