{"id":"CVE-2018-8828","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-8828","generatedAt":"2026-10-29T00:57:46.965Z","title":"A Buffer Overflow issue was discovered in Kamailio before 4.4.7, 5.0.x before 5.0.6, and 5.1.x before 5.1.2.","description":"A Buffer Overflow issue was discovered in Kamailio before 4.4.7, 5.0.x before 5.0.6, and 5.1.x before 5.1.2. A specially crafted REGISTER message with a malformed branch or From tag triggers an off-by-one heap-based buffer overflow in the tmx_check_pretran function in modules/tmx/tmx_pretran.c.","published":"2018-03-20T20:29:00.000Z","lastModified":"2026-06-17T02:05:28.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-193","CWE-787"],"affected":["kamailio/kamailio","debian/debian linux"],"epss":{"score":0.30411,"percentile":0.98224,"date":"2026-10-27","history":[{"date":"2026-09-21","score":0.27369,"percentile":0.98022},{"date":"2026-09-22","score":0.30411,"percentile":0.98151}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 30.4%, higher than 98% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"https://github.com/EnableSecurity/advisories/tree/master/ES2018-05-kamailio-heap-overflow","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/kamailio/kamailio/commit/e1d8008a09d9390ebaf698abe8909e10dfec4097","tags":["Patch","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://usn.ubuntu.com/4240-1/","source":"cve@mitre.org"},{"url":"https://www.debian.org/security/2018/dsa-4148","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/EnableSecurity/advisories/tree/master/ES2018-05-kamailio-heap-overflow","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/kamailio/kamailio/commit/e1d8008a09d9390ebaf698abe8909e10dfec4097","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/4240-1/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2018/dsa-4148","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-8828","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."}