VULNERABILITY INTELLIGENCE
CVE-2021-39638
CVSS score6.7 MEDIUM
EPSS probability0.12%
CISA KEVNot currently listed
Published2021-12-15
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Description
In periodic_io_work_func of lwis_periodic_io.c, there is a possible out of bounds write due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-195607566References: N/A
Weakness classification
- nvd@nist.gov: CWE-416
Primary references
- security@android.com — Patch, Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Patch, Vendor Advisory