VulnerabilityAnalyzed
CVE-2026-1998
This vulnerability affects the function mp_import_all of the file py/runtime.c.
LOW 1.9EPSS 0.21%
Does this matter?
Lower severity and a low EPSS score (0.21%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 4.0
- 1.9 LOWCVSS: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
- EPSS
- 0.21% probability · 11th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-119, CWE-787
- Affected
- micropython/micropython
- Source
- cna@vuldb.com
References
- https://github.com/dpgeorge/micropython/commit/570744d06c5ba9dba59b4c3f432ca4f0abd396b6Patch
- https://github.com/micropython/micropython/Product
- https://github.com/micropython/micropython/issues/18639Exploit, Issue Tracking
- https://github.com/micropython/micropython/issues/18639#issue-3780651410Exploit, Issue Tracking
- https://github.com/micropython/micropython/pull/18671Exploit, Issue Tracking
- https://vuldb.com/?ctiid.344546Permissions Required, VDB Entry
- https://vuldb.com/?id.344546Third Party Advisory, VDB Entry
- https://vuldb.com/?submit.743396Exploit, Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.