CVE-2021-25394: A use after free vulnerability via race condition in MFC charger driver prior to SMR MAY-2021 Release 1 allows arbitrary write given a radio privilege is…

PriorityP277medium6.4CVSS 3.1

AVLACHPRHUINSUCHIHAH

KEVITW

CISA Known Exploited Vulnerabilitydue 2023-07-20

Exploited in the wild

EPSS

0.42%

33.8th percentile

A use after free vulnerability via race condition in MFC charger driver prior to SMR MAY-2021 Release 1 allows arbitrary write given a radio privilege is compromised.

Affected

5 ranges

Vendor	Product	Version range	Fixed in
samsung	android	—	—
samsung	android	—	—
samsung	android	—	—
samsung	android	—	—
samsung_mobile	samsung_mobile_devices	>= O(8.x), P(9.0), Q(10.0), R(11.0) < SMR MAY-2021 Release 1	SMR MAY-2021 Release 1

Detection & IOCsextracted from sources · hover to see the quote

→Vulnerability resides in the MFC charger driver on Samsung Mobile Devices; monitor for exploitation attempts targeting this driver component in conjunction with a compromised radio privilege context ↗
→Exploitation requires radio privilege to be compromised first; correlate any radio subsystem privilege escalation events with subsequent arbitrary write activity as a chained attack indicator ↗

·Vulnerability is present only in Samsung Mobile Devices running software versions prior to SMR MAY-2021 Release 1; devices patched at or beyond this release are not affected ↗

CVSS provenance

nvdv3.16.4MEDIUMCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

nvdv2.04.4MEDIUMAV:L/AC:M/Au:N/C:P/I:P/A:P

vulncheck6.4MEDIUM

cisa6.4MEDIUM

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