CVE-2023-21401

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

In DevmemIntChangeSparse of devicemem_server.c, there is a possible out of bounds write due to an integer overflow. This could lead to local escalation of privilege in the kernel with no additional execution privileges needed. User interaction is not needed for exploitation.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected software

Vendor	Product	Versions
Google	Android	Android SoC

References

https://source.android.com/security/bulletin/2023-12-01Vendor Advisory
https://source.android.com/security/bulletin/2023-12-01Vendor Advisory

Timeline

Published: Dec 4, 2023
Last modified: Jun 17, 2026
NVD status: Modified

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