CVE-2016-3884 Missing authorization in n/a

What is CVE-2016-3884?

CVE-2016-3884 is a medium-severity missing authorization vulnerability in Google Android, published on 11 Sep 2016. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

server/notification/NotificationManagerService.java in the Notification Manager Service in Android 6.x before 2016-09-01 and 7.0 before 2016-09-01 lacks uid checks, which allows attackers to bypass intended restrictions on method calls via a crafted application, aka internal bug 29421441.

Weakness: CWE-284

Which versions are affected by CVE-2016-3884?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2016-3884?

No fix has been published for CVE-2016-3884 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2016-3884 being exploited?

There is no known exploitation of CVE-2016-3884 in the wild and no public exploit code.

Other vulnerabilities in Google Android

• CVE-2026-58704 Google Pixel Improper Authorization Exploited High 8.8
• CVE-2025-48543 Android Runtime Use-After-Free Exploited High 8.8
• CVE-2023-35674 Android Framework Privilege Escalation Exploited High 8.8
• CVE-2025-48595 Android Framework Integer Overflow Exploited High 8.4
• CVE-2024-32896 Android Pixel Privilege Escalation Exploited High 8.1

All Google Android vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-248j-6c4g-f66m.