CVE-2021-25344 Missing authorization in Samsung Mobile Devices

What is CVE-2021-25344?

CVE-2021-25344 is a medium-severity missing authorization vulnerability in Google Android, published on 4 Mar 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Missing permission check in knox_custom service prior to SMR Mar-2021 Release 1 allows attackers to gain access to device's serial number without permission.

Weakness: CWE-862

Which versions are affected by CVE-2021-25344?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2021-25344?

No fix has been published for CVE-2021-25344 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-2021-25344 being exploited?

There is no known exploitation of CVE-2021-25344 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-7jf5-gj88-2rcc.