{"schemaVersion":3,"id":"USN-7472-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"micropython vulnerabilities\n\nJunwha Hong and Wonil Jang discovered that Micropython incorrectly handled\nthe length of a buffer in mp_vfs_umount, leading to a heap-based buffer\noverflow vulnerability. If a user or automated system were tricked into\nopening a specially crafted file, an attacker could possibly use this issue\nto cause a denial of service or possibly execute arbitrary code.\n(CVE-2024-8946)\n\n\nJunwha Hong and Wonil Jang discovered that Micropython incorrectly handled\nmemory, leading to a use-after-free vulnerability under certain\ncircumstances. If a user or automated system were tricked into opening a\nspecially crafted file, an attacker could possibly use this issue to\ncause a denial of service or possibly execute arbitrary code.\n(CVE-2024-8947)\n\nIt was discovered that Middleware USB Host MCU Component incorrectly\nhandled memory, leading to a buffer overflow vulnerability, If a user or\nautomated system were tricked into opening a specially crafted file, an\nattacker could possibly use this issue to cause a denial of service or\npossibly execute arbitrary code. (CVE-2021-42553)","dates":{"published":"2025-05-01T13:04:26.000Z","modified":"2026-04-27T17:56:36.281Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":null,"severity":"unknown","version":null,"versionLabel":null,"source":null,"vector":null,"computed":false,"selection":"none"},"metrics":[]},"epss":{"probability":null,"percentile":null,"severity":"unknown","asOf":null,"change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[],"last30":[]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[],"affected":[{"vendor":"ubuntu","product":"micropython","name":"micropython","label":"micropython","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/micropython","purlType":"deb","versions":[{"text":"< 1.12-1ubuntu0.1~esm1","noFixRecorded":false,"fixedIn":null},{"text":"< 1.17+ds-1.1ubuntu2+esm1","noFixRecorded":false,"fixedIn":null},{"text":"< 1.22.1+ds-1ubuntu0.24.04.1~esm1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1.12-1ubuntu0.1~esm1 | < 1.17+ds-1.1ubuntu2+esm1 | < 1.22.1+ds-1ubuntu0.24.04.1~esm1","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-7472-1","label":"ubuntu.com/security/notices/USN-7472-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2021-42553","label":"ubuntu.com/security/CVE-2021-42553","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2024-8946","label":"ubuntu.com/security/CVE-2024-8946","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2024-8947","label":"ubuntu.com/security/CVE-2024-8947","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2021-42553","CVE-2024-8946","CVE-2024-8947"],"downstream":[],"duplicates":[],"related":["CVE-2021-42553","CVE-2024-8946","CVE-2024-8947"]},"timeline":[{"kind":"published","date":"2025-05-01T13:04:26.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-04-27T17:56:36.281Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":0,"level":"minimal","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T13:22:20.678Z","stale":false,"partial":false}}