{"id":"CVE-2020-11684","url":"https://www.cyber-defence.io/tools/cve/CVE-2020-11684","generatedAt":"2026-10-27T20:19:21.134Z","title":"This can be exploited to disclose these keys and subsequently encrypt and sign the next boot stage (such as the bootloader).","description":"AT91bootstrap before 3.9.2 does not properly wipe encryption and authentication keys from memory before passing control to a less privileged software component. This can be exploited to disclose these keys and subsequently encrypt and sign the next boot stage (such as the bootloader).","published":"2020-09-14T14:15:11.000Z","lastModified":"2026-06-17T02:50:37.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":9.1,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"},"cwe":["CWE-212"],"affected":["linux4sam/at91bootstrap"],"epss":{"score":0.01077,"percentile":0.64795,"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 (1.08%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/linux4sam/at91bootstrap/commit/45419497309ffbf27c17ea7938499aca99168927","tags":["Patch","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://labs.f-secure.com/advisories/microchip-at91bootstrap/","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/linux4sam/at91bootstrap/commit/45419497309ffbf27c17ea7938499aca99168927","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://labs.f-secure.com/advisories/microchip-at91bootstrap/","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2020-11684","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."}