{"id":"CVE-2018-9989","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-9989","generatedAt":"2026-10-28T19:03:58.598Z","title":"ARM mbed TLS before 2.1.11, before 2.7.2, and before 2.8.0 has a buffer over-read in ssl_parse_server_psk_hint() that could cause a crash on invalid input.","description":"ARM mbed TLS before 2.1.11, before 2.7.2, and before 2.8.0 has a buffer over-read in ssl_parse_server_psk_hint() that could cause a crash on invalid input.","published":"2018-04-10T19:29:00.000Z","lastModified":"2026-06-17T02:07:27.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-125"],"affected":["arm/mbed tls","trustedfirmware/mbed tls","debian/debian linux"],"epss":{"score":0.02117,"percentile":0.81747,"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 (2.12%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/ARMmbed/mbedtls/commit/5224a7544c95552553e2e6be0b4a789956a6464e","tags":["Patch","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/ARMmbed/mbedtls/commit/740b218386083dc708ce98ccc94a63a95cd5629e","tags":["Patch","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://lists.debian.org/debian-lts-announce/2018/09/msg00029.html","tags":["Mailing List","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://lists.debian.org/debian-lts-announce/2021/11/msg00021.html","tags":["Mailing List","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://tls.mbed.org/tech-updates/releases/mbedtls-2.8.0-2.7.2-and-2.1.11-released","tags":["Release Notes","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/ARMmbed/mbedtls/commit/5224a7544c95552553e2e6be0b4a789956a6464e","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/ARMmbed/mbedtls/commit/740b218386083dc708ce98ccc94a63a95cd5629e","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2018/09/msg00029.html","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2021/11/msg00021.html","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://tls.mbed.org/tech-updates/releases/mbedtls-2.8.0-2.7.2-and-2.1.11-released","tags":["Release Notes","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-9989","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."}