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.
https://vuldb.com/?submit.743396
https://vuldb.com/?ctiid.344546
https://github.com/micropython/micropython/pull/18671
https://github.com/micropython/micropython/issues/18639#issue-3780651410
https://github.com/micropython/micropython/issues/18639
https://github.com/micropython/micropython/
https://github.com/dpgeorge/micropython/commit/570744d06c5ba9dba59b4c3f432ca4f0abd396b6
Published: 2026-02-06
Updated: 2026-02-06
Base Score: 1.7
Vector: CVSS2#AV:L/AC:L/Au:S/C:N/I:N/A:P
Severity: Low
Base Score: 3.3
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Severity: Low
Base Score: 4.8
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
Severity: Medium
EPSS: 0.00015