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Vulnerability record · CVE-2026-42542 · published 10 June 2026

CVE-2026-42542: Tdengine vulnerability

Tdengine · Tdengine

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.

7.5 CVSS 3.1 High EPSS 0.63% · top 51.8% CWE-191 · CWE-191
7.5CVSS 3.1 base score
0.63%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 1 tagged exploit
23 Jul 2026Last modified by NVD

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/taosdata/TDengine/releases/tag/ver-3.4.1.6 ProductRelease Notes
https://github.com/taosdata/TDengine/security/advisories/GHSA-vg95-j2hf-hvjx ExploitMitigationVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-42542), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.