{"id":"CVE-2020-25860","url":"https://www.cyber-defence.io/tools/cve/CVE-2020-25860","generatedAt":"2026-10-27T22:31:43.631Z","title":"The install.c module in the Pengutronix RAUC update client prior to version 1.5 has a Time-of-Check Time-of-Use vulnerability, where signature verification on an update file takes place before the file is reopened for installation.","description":"The install.c module in the Pengutronix RAUC update client prior to version 1.5 has a Time-of-Check Time-of-Use vulnerability, where signature verification on an update file takes place before the file is reopened for installation. An attacker who can modify the update file just before it is reopened can install arbitrary code on the device.","published":"2020-12-21T18:15:15.000Z","lastModified":"2026-06-17T03:07:24.000Z","status":"Modified","sourceIdentifier":"vuln@vdoo.com","cvss":{"version":"3.1","score":6.6,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-367"],"affected":["pengutronix/rauc"],"epss":{"score":0.01446,"percentile":0.7312,"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 (1.45%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://github.com/rauc/rauc/security/advisories/GHSA-cgf3-h62j-w9vv","tags":["Exploit","Third Party Advisory"],"source":"vuln@vdoo.com"},{"url":"https://www.vdoo.com/blog/cve-2020-25860-significant-vulnerability-discovered-rauc-embedded-firmware-update-framework","tags":["Exploit","Third Party Advisory"],"source":"vuln@vdoo.com"},{"url":"https://github.com/rauc/rauc/security/advisories/GHSA-cgf3-h62j-w9vv","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.vdoo.com/blog/cve-2020-25860-significant-vulnerability-discovered-rauc-embedded-firmware-update-framework","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2020-25860","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."}