{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-42542", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-04-28T16:56:50.190Z", "datePublished": "2026-06-10T20:32:38.985Z", "dateUpdated": "2026-06-10T20:32:38.985Z"}, "containers": {"cna": {"title": "TDengine has an integer underflow in uvConnMayGetUserInfo() allows unauthenticated remote crash (DoS)", "problemTypes": [{"descriptions": [{"cweId": "CWE-191", "lang": "en", "description": "CWE-191: Integer Underflow (Wrap or Wraparound)", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/taosdata/TDengine/security/advisories/GHSA-vg95-j2hf-hvjx", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/taosdata/TDengine/security/advisories/GHSA-vg95-j2hf-hvjx"}, {"name": "https://github.com/taosdata/TDengine/releases/tag/ver-3.4.1.6", "tags": ["x_refsource_MISC"], "url": "https://github.com/taosdata/TDengine/releases/tag/ver-3.4.1.6"}], "affected": [{"vendor": "taosdata", "product": "TDengine", "versions": [{"version": ">= 3.4.0.0, < 3.4.1.6", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-06-10T20:32:38.985Z"}, "descriptions": [{"lang": "en", "value": "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."}], "source": {"advisory": "GHSA-vg95-j2hf-hvjx", "discovery": "UNKNOWN"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "id": "CVE-2026-42542", "lastModified": "2026-06-10T22:16:57.527", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-06-10T22:16:57.527", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/taosdata/TDengine/releases/tag/ver-3.4.1.6"}, {"source": "security-advisories@github.com", "url": "https://github.com/taosdata/TDengine/security/advisories/GHSA-vg95-j2hf-hvjx"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-191"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[3.4.0.0,3.4.1.6)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "TDengine", "source": "cna", "vendor": "taosdata"}, "product": "tdengine", "vendor": "taosdata"}], "created": "2026-06-10T23:00:20.863955+00:00", "updated": "2026-06-11T10:40:50.390872+00:00", "vendors": ["taosdata", "taosdata$PRODUCT$tdengine"]}