CVE-2021-25451 Information disclosure in Samsung Mobile Devices

What is CVE-2021-25451?

CVE-2021-25451 is a low-severity vulnerability in Google Android, published on 9 Sep 2021. 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

A PendingIntent hijacking in NetworkPolicyManagerService prior to SMR Sep-2021 Release 1 allows attackers to get IMSI data.

Weakness: CWE-287

Which versions are affected by CVE-2021-25451?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2021-25451?

No fix has been published for CVE-2021-25451 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-25451 being exploited?

There is no known exploitation of CVE-2021-25451 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-fm4f-mfw8-25x9.