{"id":"CVE-2017-16872","url":"https://www.cyber-defence.io/tools/cve/CVE-2017-16872","generatedAt":"2026-10-29T01:49:42.724Z","title":"Parsing the numeric header fields in a SIP message (like cseq, ttl, port, etc.) all had the potential to overflow, either causing unintended values to be captured or, if the values were subsequently converted back to strings, a buffer overrun.","description":"An issue was discovered in Teluu pjproject (pjlib and pjlib-util) in PJSIP before 2.7.1. Parsing the numeric header fields in a SIP message (like cseq, ttl, port, etc.) all had the potential to overflow, either causing unintended values to be captured or, if the values were subsequently converted back to strings, a buffer overrun. This will lead to a potential exploit using carefully crafted invalid values.","published":"2017-11-17T09:29:00.000Z","lastModified":"2026-06-17T01:10:04.000Z","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-119"],"affected":["teluu/pjsip","debian/debian linux"],"epss":{"score":0.03466,"percentile":0.88994,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (3.47%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://trac.pjsip.org/repos/milestone/release-2.7.1","tags":["Release Notes","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://trac.pjsip.org/repos/ticket/2056","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://www.debian.org/security/2018/dsa-4170","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://trac.pjsip.org/repos/milestone/release-2.7.1","tags":["Release Notes","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://trac.pjsip.org/repos/ticket/2056","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2018/dsa-4170","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2017-16872","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."}