{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-82414", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-08-28T22:00:43.514Z", "datePublished": "2026-11-13T18:40:31.749Z", "dateUpdated": "2026-11-13T21:18:08.561Z"}, "containers": {"cna": {"title": "BACnet Stack: MS/TP COBS decode overflow", "problemTypes": [{"descriptions": [{"cweId": "CWE-787", "lang": "en", "description": "CWE-787: Out-of-bounds Write", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/bacnet-stack/bacnet-stack/security/advisories/GHSA-8456-m9x4-j6mc", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/bacnet-stack/bacnet-stack/security/advisories/GHSA-8456-m9x4-j6mc"}, {"name": "https://github.com/bacnet-stack/bacnet-stack/pull/1425", "tags": ["x_refsource_MISC"], "url": "https://github.com/bacnet-stack/bacnet-stack/pull/1425"}], "affected": [{"vendor": "bacnet-stack", "product": "bacnet-stack", "versions": [{"version": ">= 1.4.0, < 1.4.6", "status": "affected"}, {"version": ">= 1.5.0, < 1.5.1", "status": "affected"}, {"version": ">= 1.6.0, < 1.6.1", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-11-13T18:40:31.749Z"}, "descriptions": [{"lang": "en", "value": "BACnet Stack is a BACnet open source protocol stack C library for embedded systems. From versions 1.4.0 to before 1.4.6, 1.5.0 to before 1.5.1, and 1.6.0 to before 1.6.1, the BACnet MS/TP receive path decodes COBS frames into an output pointer inside the same fixed input buffer, but passes the full input-buffer size as the decode capacity. A long valid COBS payload can therefore write past the end of the actual remaining buffer. This issue has been patched in versions 1.4.6, 1.5.1, 1.6.1, and 1.7.0."}], "source": {"advisory": "GHSA-8456-m9x4-j6mc", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/bacnet-stack/bacnet-stack/security/advisories/GHSA-8456-m9x4-j6mc", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-11-13T21:17:48.680575Z", "id": "CVE-2026-82414", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-11-13T21:18:08.561Z"}}]}}

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{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[1.4.0,1.4.6)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[1.5.0,1.5.1)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[1.6.0,1.6.1)"}}], "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": "2026-11-13T21:45:09.136558+00:00", "updated": "2026-11-13T21:45:09.136571+00:00", "vendors": ["bacnetstack", "bacnetstack$PRODUCT$bacnet_stack"]}