{"affected":[{"product":"bacnet-stack","source":"CNA: GitHub_M","vendor":"bacnet-stack","versions":[{"status":"affected","version":"< 1.4.4"},{"status":"affected","version":"< 1.5.1"}]}],"cveId":"CVE-2026-47217","cwes":["CWE-20","CWE-400","CWE-674","CWE-754"],"description":"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.","epss":{"date":"2026-11-13","percentile":0.32862,"score":0.00383},"exploits":[{"kind":"exploit","source":"ADP: CISA-ADP","url":"https://github.com/bacnet-stack/bacnet-stack/security/advisories/GHSA-wjw5-q9g6-2764"}],"kev":null,"metrics":[{"score":7.5,"severity":"high","source":"CNA: GitHub_M","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},{"score":7.5,"severity":"high","source":"NVD: security-advisories@github.com","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}],"modifiedAt":1794597147192,"publishedAt":1794513687465,"references":[{"source":"CNA: GitHub_M","tags":["x_refsource_CONFIRM"],"url":"https://github.com/bacnet-stack/bacnet-stack/security/advisories/GHSA-wjw5-q9g6-2764"},{"source":"CNA: GitHub_M","tags":["x_refsource_MISC"],"url":"https://github.com/bacnet-stack/bacnet-stack/pull/1345"},{"source":"ADP: CISA-ADP","tags":["exploit"],"url":"https://github.com/bacnet-stack/bacnet-stack/security/advisories/GHSA-wjw5-q9g6-2764"},{"source":"security-advisories@github.com","tags":[],"url":"https://github.com/bacnet-stack/bacnet-stack/pull/1345"},{"source":"security-advisories@github.com","tags":[],"url":"https://github.com/bacnet-stack/bacnet-stack/security/advisories/GHSA-wjw5-q9g6-2764"}],"remediation":[],"revision":"21179a82713235f12a3d91b6f4c2d868118ed71ebd94f04a003728519c1d9ef3","sources":[{"modifiedAt":1794597147192,"name":"CNA: GitHub_M","retrievedAt":1794600611146,"url":"https://www.cve.org/CVERecord?id=CVE-2026-47217"},{"modifiedAt":1794521379233,"name":"NVD","retrievedAt":1794529639388,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-47217"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1794600623868,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-47217"}],"ssvc":{"assessedAt":1794597130514,"automatable":"yes","exploitation":"poc","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"BACnet Stack: Channel member self-reference causes uncontrolled recursion and stack overflow in default BACnet/IP server","updatedAt":1794600623868}