{"id":"CVE-2019-5478","url":"https://www.cyber-defence.io/tools/cve/CVE-2019-5478","generatedAt":"2026-10-27T23:24:58.675Z","title":"A weakness was found in Encrypt Only boot mode in Zynq UltraScale+ devices.","description":"A weakness was found in Encrypt Only boot mode in Zynq UltraScale+ devices. This could lead to an adversary being able to modify the control fields of the boot image leading to an incorrect secure boot behavior.","published":"2019-09-03T20:15:12.000Z","lastModified":"2026-06-17T02:37:46.000Z","status":"Analyzed","sourceIdentifier":"support@hackerone.com","cvss":{"version":"3.1","score":5.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N"},"cwe":["CWE-657","CWE-345"],"affected":["amd/zu11eg firmware","amd/zu15eg firmware","amd/zu17eg firmware","amd/zu19eg firmware","amd/zu1cg firmware","amd/zu1eg firmware","amd/zu21dr firmware","amd/zu25dr firmware","amd/zu27dr firmware","amd/zu28dr firmware","amd/zu29dr firmware","amd/zu2cg firmware","amd/zu2eg firmware","amd/zu39dr firmware","amd/zu3cg firmware","amd/zu3eg firmware","amd/zu3tcg firmware","amd/zu3teg firmware","amd/zu42dr firmware","amd/zu43dr firmware","amd/zu46dr firmware","amd/zu47dr firmware","amd/zu48dr firmware","amd/zu49dr firmware","amd/zu4cg firmware","amd/zu4eg firmware","amd/zu4ev firmware","amd/zu5cg firmware","amd/zu5eg firmware","amd/zu5ev firmware","amd/zu63dr firmware","amd/zu64dr firmware","amd/zu65dr firmware","amd/zu67dr firmware","amd/zu6cg firmware","amd/zu6eg firmware","amd/zu7cg firmware","amd/zu7eg firmware","amd/zu7ev firmware","amd/zu9cg firmware","amd/zu9eg firmware"],"epss":{"score":0.00249,"percentile":0.16085,"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 (0.25%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://github.com/inversepath/advisories/blob/master/Security_Advisory-Ref_FSC-HWSEC-VR2019-0001-Xilinx_ZU+-Encrypt_Only_Secure_Boot_bypass.txt","tags":["Third Party Advisory"],"source":"support@hackerone.com"},{"url":"https://www.xilinx.com/support/answers/72588.html","tags":["Vendor Advisory"],"source":"support@hackerone.com"},{"url":"https://github.com/inversepath/advisories/blob/master/Security_Advisory-Ref_FSC-HWSEC-VR2019-0001-Xilinx_ZU+-Encrypt_Only_Secure_Boot_bypass.txt","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.xilinx.com/support/answers/72588.html","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-5478","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."}