CVE-2026-0099

Published Jun 1, 2026 CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Description
In onNullBinding of HostEmulationManager.java, there is a possible way to launch an activity from the background due to a logic error in the code. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation.

Analysis

AI-generated

Technical impact

A logic error in onNullBinding of HostEmulationManager.java allows an app to launch an activity from the background. This behavior can lead to a local privilege escalation attack with no need for additional execution privileges. The exploitation requires user interaction, meaning a user must be prompted or interact with the device for the attack to succeed.

Affected Systems

The vulnerability affects Google Android devices running version 14.0, 15.0, 16.0, or the 16.0 qpr2 branch, targeting the HostEmulationManager component of the Android OS. All devices on those releases are potentially vulnerable unless the corresponding patch is applied.

Risk and Exploitability

The CVE is not listed in the CISA KEV catalog and an EPSS score of < 1% indicates a very low but non‑zero probability of exploitation. The CVSS score of 7.8 indicates a medium‑high severity local privilege escalation potential. Because the attack requires user interaction, the risk depends heavily on user behavior, but once triggered it could elevate attacker privileges on the device.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Update your Android device to the latest version that contains the HostEmulationManager patch.
  • Limit background app activity launch by disabling or restricting background activity permissions in the app manifest or using device policy controls.
  • Verify that no untrusted third‑party apps can invoke the HostEmulationManager component and remove or update any such apps.

Generated by OpenCVE AI on June 3, 2026 at 04:33 UTC.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
CPEs cpe:2.3:o:google:android:16.0:qpr2_beta_1:*:*:*:*:*:*
cpe:2.3:o:google:android:16.0:qpr2_beta_2:*:*:*:*:*:*
cpe:2.3:o:google:android:16.0:qpr2_beta_3:*:*:*:*:*:*
cpe:2.3:o:google:android:16.0:qpr2:*:*:*:*:*:*
Type Values Removed Values Added
CPEs cpe:2.3:o:google:android:16.0:qpr2:*:*:*:*:*:* cpe:2.3:o:google:android:16.0:qpr2_beta_1:*:*:*:*:*:*
cpe:2.3:o:google:android:16.0:qpr2_beta_2:*:*:*:*:*:*
cpe:2.3:o:google:android:16.0:qpr2_beta_3:*:*:*:*:*:*
Type Values Removed Values Added
Title Local Privilege Escalation via Background Activity Launch in Android
Type Values Removed Values Added
Title Local Privilege Escalation via Background Activity Launch in Android
Weaknesses CWE-284
Type Values Removed Values Added
Weaknesses CWE-273
CPEs cpe:2.3:o:google:android:14.0:*:*:*:*:*:*:*
cpe:2.3:o:google:android:15.0:*:*:*:*:*:*:*
cpe:2.3:o:google:android:16.0:-:*:*:*:*:*:*
cpe:2.3:o:google:android:16.0:qpr2:*:*:*:*:*:*
Type Values Removed Values Added
Weaknesses CWE-284
Type Values Removed Values Added
Title Background Activity Launch Enabling Local Privilege Escalation in Android HostEmulationManager
Weaknesses CWE-20
CWE-640
Type Values Removed Values Added
Title Background Activity Launch Enabling Local Privilege Escalation in Android HostEmulationManager
Weaknesses CWE-20
CWE-640
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Google
Google android
Vendors & Products Google
Google android
Type Values Removed Values Added
Description In onNullBinding of HostEmulationManager.java, there is a possible way to launch an activity from the background due to a logic error in the code. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation.
References
Weaknesses
  • CWE-273

    Improper Check for Dropped Privileges

Sources

Status
PUBLISHED
Assigner
google_android
Published
Updated
Jun 2, 2026, 3:56 AM
Reserved
Oct 15, 2025, 3:43 PM
Status
Analyzed
Published
Jun 1, 2026, 10:16 PM
Modified
Nov 5, 2026, 7:37 PM