{"id":"CVE-2020-7248","url":"https://www.cyber-defence.io/tools/cve/CVE-2020-7248","generatedAt":"2026-10-27T22:25:24.342Z","title":"libubox in OpenWrt before 18.06.7 and 19.x before 19.07.1 has a tagged binary data JSON serialization vulnerability that may cause a stack based buffer overflow.","description":"libubox in OpenWrt before 18.06.7 and 19.x before 19.07.1 has a tagged binary data JSON serialization vulnerability that may cause a stack based buffer overflow.","published":"2020-03-16T21:15:13.000Z","lastModified":"2026-06-17T03:24:35.000Z","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-787"],"affected":["openwrt/openwrt"],"epss":{"score":0.02486,"percentile":0.84506,"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":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (2.49%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/openwrt/openwrt/commits/master","tags":["Patch","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-7248#range-4512438","tags":["Third Party Advisory","US Government Resource"],"source":"cve@mitre.org"},{"url":"https://openwrt.org/advisory/2020-01-31-2","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://openwrt.org/advisory/2020-01-31-2","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://openwrt.org/advisory/2020-01-31-2","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://openwrt.org/advisory/2020-01-31-2","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/openwrt/openwrt/commits/master","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-7248#range-4512438","tags":["Third Party Advisory","US Government Resource"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://openwrt.org/advisory/2020-01-31-2","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://openwrt.org/advisory/2020-01-31-2","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://openwrt.org/advisory/2020-01-31-2","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://openwrt.org/advisory/2020-01-31-2","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2020-7248","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."}