Vulnerability 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 Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Tdengine | Tdengine | >= 3.4.0.0, < 3.4.1.6 |
Related Weaknesses (CWE)
References
- https://github.com/taosdata/TDengine/releases/tag/ver-3.4.1.6ProductRelease Notes
- https://github.com/taosdata/TDengine/security/advisories/GHSA-vg95-j2hf-hvjxExploitMitigationVendor Advisory
FAQ
What is CVE-2026-42542?
CVE-2026-42542 is a vulnerability with a CVSS score of 7.5 (HIGH). 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...
How severe is CVE-2026-42542?
CVE-2026-42542 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-42542?
Check the references section above for vendor advisories and patch information. Affected products include: Tdengine Tdengine.