CVE-2021-0571

In ActivityTaskManagerService.startActivity() and AppTaskImpl.startActivity() of...

7.8 HighFix available

In ActivityTaskManagerService.startActivity() and AppTaskImpl.startActivity() of ActivityTaskManagerService.java and AppTaskImpl.java, there is possible access to restricted activities due to a permissions bypass. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11Android ID: A-137395936

Attack profile

How easy it is to exploit

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

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

0.11%Down 0.3 points since Jun 22, 2021

What each source reports

NVD Score used 7.8

Record: CVE-2021-0571
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0: 4.6 MediumAV:L/AC:L/Au:N/C:P/I:P/A:P
Weakness: CWE-863
Updated: 2026-11-02

CVE List No score

Record: CVE-2021-0571
Updated: 2026-11-02

EUVDEUVD-2021-3190 No score

Record: EUVD-2021-3190
Updated: 2026-11-03

GitHub AdvisoriesGHSA-mhrh-8vw7-3jjr 7.8

In ActivityTaskManagerService.startActivity() and AppTaskImpl.startActivity() of...

Record: GHSA-mhrh-8vw7-3jjr
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-287
Updated: 2026-11-02

OSVPUB-A-137395936 No score

Record: PUB-A-137395936
Updated: 2026-11-10

Affected products

google android

Affected packages

Affected packages
Package	Affected	Fixed
`platform/frameworks/base` Android	11:0 up to 11:2021-06-01, plus listed versions 11	11:2021-06-01

History

History
Recorded	Changed	Sources
Nov 5, 2026	facts	OSV
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

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

In short

CVE-2021-0571 is a high vulnerability (CVSS 7.8) in Google Android, published June 1, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.11%, the 1st percentile. Fixed in platform/frameworks/base 11:2021-06-01.