Not a U.S. government website. NDD is an independent vulnerability database by Volerion and is not affiliated with or endorsed by NIST or NVD.

CVE-2024-8947 Details

Description

A vulnerability was found in MicroPython 1.22.2. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the file py/objarray.c. The manipulation leads to use after free. The attack can be launched remotely. The complexity of an attack is rather high. The exploitation appears to be difficult. Upgrading to version 1.23.0 is able to address this issue. The identifier of the patch is 4bed614e707c0644c06e117f848fa12605c711cd. It is recommended to upgrade the affected component. In micropython objarray component, when a bytes object is resized and copied into itself, it may reference memory that has already been freed.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:8.1 HIGHVector:CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CNA: [email protected]CVSS-B:5.6 MEDIUMVector:CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
https://github.com/micropython/micropython/commit/4bed614e707c0644c06e117f848fa12605c711cd	[email protected]	Patch
https://github.com/micropython/micropython/issues/13283	[email protected]	ExploitThird Party Advisory
https://github.com/micropython/micropython/issues/13283#issuecomment-1918479709	[email protected]	ExploitThird Party Advisory
https://github.com/micropython/micropython/releases/tag/v1.23.0	[email protected]	Release Notes
https://vuldb.com/?ctiid.277765	[email protected]	Permissions Required
https://vuldb.com/?id.277765	[email protected]	Third Party Advisory
https://vuldb.com/?submit.409316	[email protected]	Third Party Advisory

see all 7 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-416	Use After Free	[email protected]

Affected Products

Product	Versions
micropython micropython	1.22.2
CPE cpe:2.3:a:micropython:micropython:1.22.2:::::::* Remediation No remediation found in references.

Change History

4 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
Sep 24, 2024	Initial Analysis	[email protected]
Sep 17, 2024	New CVE Received	[email protected]