{"id":"CVE-2018-7284","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-7284","generatedAt":"2026-10-28T21:19:08.160Z","title":"A Buffer Overflow issue was discovered in Asterisk through 13.19.1, 14.x through 14.7.5, and 15.x through 15.2.1, and Certified Asterisk through 13.18-cert2.","description":"A Buffer Overflow issue was discovered in Asterisk through 13.19.1, 14.x through 14.7.5, and 15.x through 15.2.1, and Certified Asterisk through 13.18-cert2. When processing a SUBSCRIBE request, the res_pjsip_pubsub module stores the accepted formats present in the Accept headers of the request. This code did not limit the number of headers it processed, despite having a fixed limit of 32. If more than 32 Accept headers were present, the code would write outside of its memory and cause a crash.","published":"2018-02-22T00:29:01.000Z","lastModified":"2026-06-17T02:02:57.000Z","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-119"],"affected":["digium/asterisk","digium/certified asterisk","debian/debian linux"],"epss":{"score":0.66167,"percentile":0.99273,"date":"2026-10-27","history":[{"date":"2026-09-21","score":0.42203,"percentile":0.98676},{"date":"2026-09-22","score":0.57662,"percentile":0.9904},{"date":"2026-09-28","score":0.66167,"percentile":0.99256}]},"kev":{"listed":false},"exploits":{"count":1,"verified":true,"firstPublished":"2018-02-27","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":44184,"kind":"exploit","title":"Asterisk chan_pjsip 15.2.0 - 'SUBSCRIBE' Stack Corruption","url":"https://www.exploit-db.com/exploits/44184","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/linux/dos/44184.py","file":"exploits/linux/dos/44184.py","published":"2018-02-27","added":"2018-02-27","updated":"2018-02-27","author":"EnableSecurity","type":"dos","platform":"linux","port":5060,"verified":true,"codes":["CVE-2018-7284"],"tags":"Denial of Service (DoS)","aliases":null,"applicationUrl":"http://www.exploit-db.comasterisk-15.2.0.tar.gz","screenshotUrl":null,"referenceUrl":"https://raw.githubusercontent.com/EnableSecurity/advisories/master/ES2018-01-asterisk-pjsip-subscribe-stack-corruption/README.md"}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 66.2%, higher than 99% of all known CVEs. Patch or mitigate before the next change window."},"changes":[{"kind":"epss","label":"EPSS jump","at":"2026-09-28T00:00:00.000Z","detail":{"to":0.66167,"from":0.57662,"percentile":0.99256},"summary":"EPSS moved from 57.7% to 66.2% probability of exploitation in the next thirty days."},{"kind":"epss","label":"EPSS jump","at":"2026-09-22T00:00:00.000Z","detail":{"to":0.57662,"from":0.42203,"percentile":0.9904},"summary":"EPSS moved from 42.2% to 57.7% probability of exploitation in the next thirty days."}],"references":[{"url":"http://downloads.asterisk.org/pub/security/AST-2018-004.html","tags":["Patch","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/103151","tags":["Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"http://www.securitytracker.com/id/1040416","tags":["Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"https://www.debian.org/security/2018/dsa-4320","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://www.exploit-db.com/exploits/44184/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"http://downloads.asterisk.org/pub/security/AST-2018-004.html","tags":["Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/103151","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id/1040416","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2018/dsa-4320","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/44184/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-7284","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."}