{"affected":[{"product":"bacnet-stack","source":"CNA: GitHub_M","vendor":"bacnet-stack","versions":[{"status":"affected","version":"< 1.4.4"},{"status":"affected","version":"< 1.5.1"},{"status":"affected","version":"< 1.6.0"}]}],"cveId":"CVE-2026-47259","cwes":["CWE-121","CWE-787"],"description":"BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to versions 1.4.4, 1.5.1, and 1.6.0, a RemoveListElement request targeting Notification-Class.recipient-list can trigger a stack-based out-of-bounds write in the current master branch when the request contains more than NC_MAX_RECIPIENTS valid BACnetDestination elements. This issue has been patched in versions 1.4.4, 1.5.1, and 1.6.0.","epss":{"date":"2026-11-13","percentile":0.17032,"score":0.00254},"exploits":[],"kev":null,"metrics":[{"score":8.2,"severity":"high","source":"CNA: GitHub_M","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","version":"3.1"},{"score":8.2,"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:L/A:H","version":"3.1"}],"modifiedAt":1794611839583,"publishedAt":1794513724659,"references":[{"source":"CNA: GitHub_M","tags":["x_refsource_CONFIRM"],"url":"https://github.com/bacnet-stack/bacnet-stack/security/advisories/GHSA-9w9m-w7w5-rrv3"},{"source":"CNA: GitHub_M","tags":["x_refsource_MISC"],"url":"https://github.com/bacnet-stack/bacnet-stack/pull/1353"},{"source":"security-advisories@github.com","tags":[],"url":"https://github.com/bacnet-stack/bacnet-stack/pull/1353"},{"source":"security-advisories@github.com","tags":[],"url":"https://github.com/bacnet-stack/bacnet-stack/security/advisories/GHSA-9w9m-w7w5-rrv3"}],"remediation":[],"revision":"07e560913eed74affb28f3b184306399a37949f1297c271d97d8de00675c994c","sources":[{"modifiedAt":1794609167426,"name":"CNA: GitHub_M","retrievedAt":1794611351508,"url":"https://www.cve.org/CVERecord?id=CVE-2026-47259"},{"modifiedAt":1794611839583,"name":"NVD","retrievedAt":1794615464123,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-47259"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1794611358408,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-47259"}],"ssvc":{"assessedAt":1794587636564,"automatable":"yes","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"BACnet Stack: Stack-based buffer overflow in Notification Class RemoveListElement recipient-list decoding","updatedAt":1794615464123}