{"id":"CVE-2018-16598","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-16598","generatedAt":"2026-10-29T01:43:19.982Z","title":"An issue was discovered in Amazon Web Services (AWS) FreeRTOS through 1.3.1, FreeRTOS up to V10.0.1 (with FreeRTOS+TCP), and WITTENSTEIN WHIS Connect middleware TCP/IP component.","description":"An issue was discovered in Amazon Web Services (AWS) FreeRTOS through 1.3.1, FreeRTOS up to V10.0.1 (with FreeRTOS+TCP), and WITTENSTEIN WHIS Connect middleware TCP/IP component. In xProcessReceivedUDPPacket and prvParseDNSReply, any received DNS response is accepted, without confirming it matches a sent DNS request.","published":"2018-12-06T23:29:01.000Z","lastModified":"2026-06-17T01:44:32.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":5.9,"severity":"MEDIUM","vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N"},"cwe":["CWE-441"],"affected":["amazon/amazon web services freertos","amazon/freertos"],"epss":{"score":0.01518,"percentile":0.74422,"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":"low","text":"Lower severity and a low EPSS score (1.52%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://blog.zimperium.com/freertos-tcpip-stack-vulnerabilities-details/","tags":["Patch","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://blog.zimperium.com/freertos-tcpip-stack-vulnerabilities-put-wide-range-devices-risk-compromise-smart-homes-critical-infrastructure-systems/","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/aws/amazon-freertos/blob/v1.3.2/CHANGELOG.md","tags":["Release Notes","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://blog.zimperium.com/freertos-tcpip-stack-vulnerabilities-details/","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://blog.zimperium.com/freertos-tcpip-stack-vulnerabilities-put-wide-range-devices-risk-compromise-smart-homes-critical-infrastructure-systems/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/aws/amazon-freertos/blob/v1.3.2/CHANGELOG.md","tags":["Release Notes","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-16598","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."}