CVE-2021-0306

highpriority · track · 41EPSS 0.003 · 19 %ileexploit · PoCDEEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · PoC

Likely / severe?

0.27% (19th) EPSS

CVSS 7.2 · high

Is it mine?

20 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · osv · cert_bund

EPSS · scored 2026-10-27

In addAllPermissions of PermissionManagerService.java, there is a possible permissions bypass when upgrading major Android versions which allows an app to gain the android.permission.ACTIVITY_RECOGNITION permission without user confirmation. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android; Versions: Android-11, Android-8.0, Android-8.1, Android-9, Android-10; Android ID: A-154505240.

cvss

Technical severity, 0–10. One row per scoring source.

7.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.07.2highAV:L/AC:L/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 3.9 · impact 10

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1.8 · impact 5.9

v3.17.4highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Psecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-269USprimary

exploits (1)

Public proof-of-concept and weaponised exploit code.

nanopathi/framework_base_AOSP10_r33_CVE-2021-0306_CVE-2021-0317nanopathi/framework_base_AOSP10_r33_CVE-2021-0306_CVE-2021-0317PoC · poc_in_github

affected products (20)

Products and version ranges known to be affected.

BlackBerry BlackBerryall versionscert_bundDEcpe:/h:rim:blackberry:-
Debian Linuxall versionscert_bundDEcpe:/o:debian:debian_linux:-
Google Android 10all versionscert_bundDEcpe:/o:google:android:10.0
Google Android 11all versionscert_bundDEcpe:/o:google:android:11.0
Google Android 8.0all versionscert_bundDEcpe:/o:google:android:8.0
Google Android 8.1all versionscert_bundDEcpe:/o:google:android:8.1
Google Android 9all versionscert_bundDEcpe:/o:google:android:9
Open Source Arch Linuxall versionscert_bundDEcpe:/o:archlinux:archlinux:-
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-
n/a Android≤ Android-9enisa_euvdEU
n/a Android≤ Android-8.0enisa_euvdEU
n/a Android≤ Android-8.1enisa_euvdEU
n/a Android≤ Android-10enisa_euvdEU
n/a Android≤ Android-11enisa_euvdEU
google android= 10.0nvdUScpe:2.3:o:google:android:*:*:*:*:*:*:*:*
google android= 11.0nvdUScpe:2.3:o:google:android:*:*:*:*:*:*:*:*
google android= 8.0nvdUScpe:2.3:o:google:android:*:*:*:*:*:*:*:*
google android= 8.1nvdUScpe:2.3:o:google:android:*:*:*:*:*:*:*:*
google android= 9.0nvdUScpe:2.3:o:google:android:*:*:*:*:*:*:*:*

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2022-1994Google Android Patchday JanuarDeutsch2021-01-04csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Google Android ausnutzen, um seine Privilegien zu erhöhen, beliebigen Programmcode auszuführen, einen Denial of Service Zustand herbeizuführen oder Informationen offenzulegen.
ASB-A-1545052402021-01-01vendor · osvUS
In addAllPermissions of PermissionManagerService.java, there is a possible permissions bypass when upgrading major Android versions which allows an app to gain the android.permission.ACTIVITY_RECOGNITION permission without user confirmation. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd osv cert_bund nvd NVD CVE.org MITRE

published 2021-01-11modified 2026-06-17

related (6,660)

Related entries.

ID	severity	EPSS	exploitable	published
CVE-2026-102490US	high7.8OT critical	0.86% (58th)	KEV	2026-09-30
Zammad packages built with packager.io (DEB and RPM) could have allowed a local attacker who already had file system write privileges as the unprivileged zammad service account to…
CVE-2026-84869US	—OT critical	0.92% (60th)	KEV	2026-09-08
A condition in the ScreenConnect client may allow files to be transferred and executed through an active remote session without authorization or Host confirmation in certain circum…
CVE-2026-46817US	—OT critical	12.3% (96th)	KEV	2026-05-28
Vulnerability in the Oracle Payments product of Oracle E-Business Suite (component: File Transmission). Supported versions that are affected are 12.2.3-12.2.15. Easily exploitable…
CVE-2026-21533US	—OT critical	4.18% (91st)	KEV	2026-02-10
Improper privilege management in Windows Remote Desktop allows an authorized attacker to elevate privileges locally.
CVE-2024-57726US	critical9.9OT critical	66.4% (99th)	KEV	2025-01-15
SimpleHelp remote support software v5.5.7 and before has a vulnerability that allows low-privileges technicians to create API keys with excessive permissions. These API keys can be…

+6655 more

references (5)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan