CVE-2021-25517 Code injection in Samsung Mobile Devices

What is CVE-2021-25517?

CVE-2021-25517 is a high-severity code injection vulnerability in Google Android, published on 8 Dec 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

An improper input validation vulnerability in LDFW prior to SMR Dec-2021 Release 1 allows attackers to perform arbitrary code execution.

Weakness: CWE-20

Which versions are affected by CVE-2021-25517?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2021-25517?

No fix has been published for CVE-2021-25517 yet. Limit exposure of the affected software until one is available.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2021-25517 being exploited?

There is no known exploitation of CVE-2021-25517 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-3vp4-6x9x-47fg.