Vulnerability Details CVE-2026-42542
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 37.0%
CVSS Severity
CVSS v3 Score 7.5
References
Products affected by CVE-2026-42542
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cpe:2.3:a:tdengine:tdengine:3.4.0.0
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cpe:2.3:a:tdengine:tdengine:3.4.0.1
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cpe:2.3:a:tdengine:tdengine:3.4.0.10
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cpe:2.3:a:tdengine:tdengine:3.4.0.11
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cpe:2.3:a:tdengine:tdengine:3.4.0.12
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cpe:2.3:a:tdengine:tdengine:3.4.0.13
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cpe:2.3:a:tdengine:tdengine:3.4.0.14
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cpe:2.3:a:tdengine:tdengine:3.4.0.2
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cpe:2.3:a:tdengine:tdengine:3.4.0.3
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cpe:2.3:a:tdengine:tdengine:3.4.0.4
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cpe:2.3:a:tdengine:tdengine:3.4.0.5
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cpe:2.3:a:tdengine:tdengine:3.4.0.6
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cpe:2.3:a:tdengine:tdengine:3.4.0.7
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cpe:2.3:a:tdengine:tdengine:3.4.0.8
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cpe:2.3:a:tdengine:tdengine:3.4.0.9
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cpe:2.3:a:tdengine:tdengine:3.4.1.0
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cpe:2.3:a:tdengine:tdengine:3.4.1.1
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cpe:2.3:a:tdengine:tdengine:3.4.1.2
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cpe:2.3:a:tdengine:tdengine:3.4.1.3
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cpe:2.3:a:tdengine:tdengine:3.4.1.4
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cpe:2.3:a:tdengine:tdengine:3.4.1.5