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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.

PUBLISHED Reserved 2026-04-28 | Published 2026-06-10 | Updated 2026-06-10 | Assigner GitHub_M




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

Problem types

CWE-191: Integer Underflow (Wrap or Wraparound)

Product status

>= 3.4.0.0, < 3.4.1.6
affected

References

github.com/...engine/security/advisories/GHSA-vg95-j2hf-hvjx

github.com/taosdata/TDengine/releases/tag/ver-3.4.1.6

cve.org (CVE-2026-42542)

nvd.nist.gov (CVE-2026-42542)

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