{"id":"CVE-2019-18863","url":"https://www.cyber-defence.io/tools/cve/CVE-2019-18863","generatedAt":"2026-10-27T20:20:21.365Z","title":"A key length vulnerability in the implementation of the SRTP 128-bit key on Mitel 6800 and 6900 SIP series phones, versions 5.1.0.2051 SP2 and earlier, could allow an attacker to launch a man-in-the-middle attack when SRTP is used in a call.","description":"A key length vulnerability in the implementation of the SRTP 128-bit key on Mitel 6800 and 6900 SIP series phones, versions 5.1.0.2051 SP2 and earlier, could allow an attacker to launch a man-in-the-middle attack when SRTP is used in a call. A successful exploit may allow the attacker to intercept sensitive information.","published":"2020-03-02T18:15:11.000Z","lastModified":"2026-06-17T02:25:30.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":5.9,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"},"cwe":["CWE-326"],"affected":["mitel/6863i firmware","mitel/6865i firmware","mitel/6867i firmware","mitel/6869i firmware","mitel/6873i firmware","mitel/6920 firmware","mitel/6930 firmware","mitel/6940 firmware"],"epss":{"score":0.00513,"percentile":0.43475,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.51%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://www.mitel.com/support/security-advisories","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://www.mitel.com/support/security-advisories/mitel-product-security-advisory-19-0006","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://www.mitel.com/support/security-advisories","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.mitel.com/support/security-advisories/mitel-product-security-advisory-19-0006","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-18863","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."}