{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-47217", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-05-18T22:25:21.258Z", "datePublished": "2026-11-12T20:01:27.465Z", "dateUpdated": "2026-11-12T20:01:27.465Z"}, "containers": {"cna": {"title": "BACnet Stack: Channel member self-reference causes uncontrolled recursion and stack overflow in default BACnet/IP server", "problemTypes": [{"descriptions": [{"cweId": "CWE-20", "lang": "en", "description": "CWE-20: Improper Input Validation", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-400", "lang": "en", "description": "CWE-400: Uncontrolled Resource Consumption", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-674", "lang": "en", "description": "CWE-674: Uncontrolled Recursion", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-754", "lang": "en", "description": "CWE-754: Improper Check for Unusual or Exceptional Conditions", "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/bacnet-stack/bacnet-stack/security/advisories/GHSA-wjw5-q9g6-2764", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/bacnet-stack/bacnet-stack/security/advisories/GHSA-wjw5-q9g6-2764"}, {"name": "https://github.com/bacnet-stack/bacnet-stack/pull/1345", "tags": ["x_refsource_MISC"], "url": "https://github.com/bacnet-stack/bacnet-stack/pull/1345"}], "affected": [{"vendor": "bacnet-stack", "product": "bacnet-stack", "versions": [{"version": "< 1.4.4", "status": "affected"}, {"version": "< 1.5.1", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-11-12T20:01:27.465Z"}, "descriptions": [{"lang": "en", "value": "BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to versions 1.4.4 and 1.5.1, a remote attacker can trigger an uncontrolled recursion and stack overflow in the default server application of bacnet-stack by abusing the Channel object. This issue has been patched in versions 1.4.4 and 1.5.1."}], "source": {"advisory": "GHSA-wjw5-q9g6-2764", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "bacnet-stack", "vendor": "bacnet-stack", "versions": [{"status": "affected", "version": "< 1.4.4"}, {"status": "affected", "version": "< 1.5.1"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to versions 1.4.4 and 1.5.1, a remote attacker can trigger an uncontrolled recursion and stack overflow in the default server application of bacnet-stack by abusing the Channel object. This issue has been patched in versions 1.4.4 and 1.5.1."}], "id": "CVE-2026-47217", "lastModified": "2026-11-12T22:09:39.233", "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": "2026-11-12T20:18:39.770", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/bacnet-stack/bacnet-stack/pull/1345"}, {"source": "security-advisories@github.com", "url": "https://github.com/bacnet-stack/bacnet-stack/security/advisories/GHSA-wjw5-q9g6-2764"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}, {"lang": "en", "value": "CWE-400"}, {"lang": "en", "value": "CWE-674"}, {"lang": "en", "value": "CWE-754"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,1.4.4)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,1.5.1)"}}], "enrichment": {"confidence": 98.0, "confidence_source": "matching", "scores": [{"score": 98.0, "source": "matching"}]}, "original": {"product": "bacnet-stack", "source": "cna", "vendor": "bacnet-stack"}, "product": "bacnet_stack", "vendor": "bacnetstack"}], "created": "2026-11-13T04:30:09.207209+00:00", "updated": "2026-11-13T04:30:09.207227+00:00", "vendors": ["bacnetstack", "bacnetstack$PRODUCT$bacnet_stack"]}