In writeTypedArrayList and readTypedArrayList of Parcel.java, there is a possible escalation of privilege due to type confusion.

published 2024-11-19 23 mo ago modified 2026-06-17 4 mo ago also EUVD-2018-20933

cvss: 7.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.1%; EPSS 0.1% chance of exploitation in 30 days, percentile 0%
public exploits: 0; none known

In writeTypedArrayList and readTypedArrayList of Parcel.java, there is a possible escalation of privilege due to type confusion. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Patch / fix

links 1

source.android.com/security/bulletin/2018-06-01 advisory

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 23 mo ago (2024-11-20)

Exploit prediction

0.09% chance of exploitation in the next 30 days, higher than 0% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Google Android

Classification

Weakness

CWE-704 Incorrect Type Conversion or Cast
CWE-843 Access of Resource Using Incompatible Type

References

source.android.com /security/bulletin/2018-06-01
patch, vendor-advisory

Sources

CVE List CVE-2018-9339
NVD CVE-2018-9339

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Summary