{"id":"CVE-2019-12480","url":"https://www.cyber-defence.io/tools/cve/CVE-2019-12480","generatedAt":"2026-10-29T01:43:29.837Z","title":"BACnet Protocol Stack through 0.8.6 has a segmentation fault leading to denial of service in BACnet APDU Layer because a malformed DCC in AtomicWriteFile, AtomicReadFile and DeviceCommunicationControl services.","description":"BACnet Protocol Stack through 0.8.6 has a segmentation fault leading to denial of service in BACnet APDU Layer because a malformed DCC in AtomicWriteFile, AtomicReadFile and DeviceCommunicationControl services. An unauthenticated remote attacker could cause a denial of service (bacserv daemon crash) because there is an invalid read in bacdcode.c during parsing of alarm tag numbers.","published":"2019-05-30T22:29:00.000Z","lastModified":"2026-06-17T02:14:45.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":7.5,"severity":"HIGH","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-125"],"affected":["bacnet protocol stack project/bacnet protocol stack"],"epss":{"score":0.3389,"percentile":0.98383,"date":"2026-10-27","history":[{"date":"2026-09-21","score":0.24943,"percentile":0.97863},{"date":"2026-09-22","score":0.33653,"percentile":0.98313}]},"kev":{"listed":false},"exploits":{"count":1,"verified":false,"firstPublished":"2019-07-22","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":47148,"kind":"exploit","title":"BACnet Stack 0.8.6 - Denial of Service","url":"https://www.exploit-db.com/exploits/47148","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/linux/dos/47148.py","file":"exploits/linux/dos/47148.py","published":"2019-07-22","added":"2019-07-22","updated":"2019-07-22","author":"mmorillo","type":"dos","platform":"linux","port":null,"verified":false,"codes":["CVE-2019-12480"],"tags":null,"aliases":null,"applicationUrl":"http://www.exploit-db.combacnet-stack-0.8.6.zip","screenshotUrl":null,"referenceUrl":null}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 33.9%, higher than 98% of all known CVEs. Patch or mitigate before the next change window."},"changes":[{"kind":"epss","label":"EPSS jump","at":"2026-09-22T00:00:00.000Z","detail":{"to":0.33653,"from":0.24943,"percentile":0.98313},"summary":"EPSS moved from 24.9% to 33.7% probability of exploitation in the next thirty days."}],"references":[{"url":"http://packetstormsecurity.com/files/153716/BACnet-Stack-0.8.6-Denial-Of-Service.html","source":"cve@mitre.org"},{"url":"https://1modm.github.io/CVE-2019-12480.html","source":"cve@mitre.org"},{"url":"https://sourceforge.net/p/bacnet/bugs/62/","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://sourceforge.net/p/bacnet/code/3220","source":"cve@mitre.org"},{"url":"https://sourceforge.net/p/bacnet/code/3223","source":"cve@mitre.org"},{"url":"https://sourceforge.net/p/bacnet/code/3224","source":"cve@mitre.org"},{"url":"https://sourceforge.net/p/bacnet/code/3225","source":"cve@mitre.org"},{"url":"http://packetstormsecurity.com/files/153716/BACnet-Stack-0.8.6-Denial-Of-Service.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://1modm.github.io/CVE-2019-12480.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://sourceforge.net/p/bacnet/bugs/62/","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://sourceforge.net/p/bacnet/code/3220","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://sourceforge.net/p/bacnet/code/3223","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://sourceforge.net/p/bacnet/code/3224","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://sourceforge.net/p/bacnet/code/3225","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-12480","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}