{"id":"CVE-2026-1998","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-1998","generatedAt":"2026-10-28T02:09:59.534Z","title":"This vulnerability affects the function mp_import_all of the file py/runtime.c.","description":"A flaw has been found in micropython up to 1.27.0. This vulnerability affects the function mp_import_all of the file py/runtime.c. This manipulation causes memory corruption. The attack needs to be launched locally. The exploit has been published and may be used. Patch name: 570744d06c5ba9dba59b4c3f432ca4f0abd396b6. It is suggested to install a patch to address this issue.","published":"2026-02-06T07:16:13.000Z","lastModified":"2026-06-17T10:16:51.000Z","status":"Analyzed","sourceIdentifier":"cna@vuldb.com","cvss":{"version":"4.0","score":1.9,"severity":"LOW","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-119","CWE-787"],"affected":["micropython/micropython"],"epss":{"score":0.00228,"percentile":0.13524,"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 (0.23%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://github.com/dpgeorge/micropython/commit/570744d06c5ba9dba59b4c3f432ca4f0abd396b6","tags":["Patch"],"source":"cna@vuldb.com"},{"url":"https://github.com/micropython/micropython/","tags":["Product"],"source":"cna@vuldb.com"},{"url":"https://github.com/micropython/micropython/issues/18639","tags":["Exploit","Issue Tracking"],"source":"cna@vuldb.com"},{"url":"https://github.com/micropython/micropython/issues/18639#issue-3780651410","tags":["Exploit","Issue Tracking"],"source":"cna@vuldb.com"},{"url":"https://github.com/micropython/micropython/pull/18671","tags":["Exploit","Issue Tracking"],"source":"cna@vuldb.com"},{"url":"https://vuldb.com/?ctiid.344546","tags":["Permissions Required","VDB Entry"],"source":"cna@vuldb.com"},{"url":"https://vuldb.com/?id.344546","tags":["Third Party Advisory","VDB Entry"],"source":"cna@vuldb.com"},{"url":"https://vuldb.com/?submit.743396","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"cna@vuldb.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-1998","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."}