CVE-2023-21218

—

CVSS 3.1

9.8 critical

EPSS

<1%p35

Published

Dec 4, 2023 (Dec 4, 2023)

Modified

Jun 17, 2026

Description

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

Vendors: google
Products: android
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (0.4%)

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