CVE-2021-0339

In loadAnimation of WindowContainer.java, there is a possible way to keep displaying a malicious...

7.8 HighPublic exploitFix available

In loadAnimation of WindowContainer.java, there is a possible way to keep displaying a malicious app while a target app is brought to the foreground. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-10 Android-8.1 Android-9Android ID: A-145728687

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: Low
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

0.76%Up 0.6 points since Apr 14, 2021

What each source reports

NVD Score used7.8

Record: CVE-2021-0339
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.0: 9.3 HighAV:N/AC:M/Au:N/C:C/I:C/A:C
Weakness: CWE-754
Updated: 2026-11-02

CVE ListNo score

Record: CVE-2021-0339
Updated: 2026-11-02

EUVDEUVD-2021-2958No score

Record: EUVD-2021-2958
Updated: 2026-11-03

GitHub AdvisoriesGHSA-c6h8-w7qx-qj83No score

In loadAnimation of WindowContainer.java, there is a possible way to keep displaying a malicious...

Record: GHSA-c6h8-w7qx-qj83
Weakness: CWE-754
Updated: 2026-11-02

OSVASB-A-145728687No score

Record: ASB-A-145728687
Updated: 2026-11-09

Affected products

google android

Affected packages

Affected packages
Package	Affected	Fixed
`platform/frameworks/base` Android	8.0:0 up to 8.0:2021-02-01, plus listed versions 8.0	8.0:2021-02-01
`platform/frameworks/base` Android	8.1:0 up to 8.1:2021-02-01, plus listed versions 8.1	8.1:2021-02-01
`platform/frameworks/base` Android	9:0 up to 9:2021-02-01, plus listed versions 9	9:2021-02-01
`platform/frameworks/base` Android	10:0 up to 10:2021-02-01, plus listed versions 10	10:2021-02-01

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
PoC in GitHub	nanopathi/framework_base_AOSP10_r33_CVE-2021-0339	2022-04-25

History

History
Recorded	Changed	Sources
Nov 4, 2026	facts	OSV
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV, PoC in GitHub

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-0339 is a high vulnerability (CVSS 7.8) in Google Android, published February 1, 2021. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 0.76%, the 55th percentile. Fixed in platform/frameworks/base 8.0:2021-02-01.