CVE-2025-26450

7.8 HIGH

📋 TL;DR

This vulnerability allows untrusted Android apps to inject keyboard and touch events into the default Input Method Editor (IME) without proper permission checks. Attackers could escalate privileges locally without user interaction. All Android devices running vulnerable versions are affected.

💻 Affected Systems

Products:
  • Android
Versions: Android versions prior to the June 2025 security update
Operating Systems: Android
Default Config Vulnerable: ⚠️ Yes
Notes: All Android devices with vulnerable versions are affected regardless of manufacturer or configuration.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete device compromise allowing attackers to execute arbitrary commands, access sensitive data, or install malware with system-level privileges.

🟠

Likely Case

Unauthorized app could simulate user input to perform actions like installing malicious apps, granting permissions, or accessing sensitive information without user consent.

🟢

If Mitigated

With proper app sandboxing and security updates, impact is limited to apps that have already bypassed standard Android security controls.

🌐 Internet-Facing: LOW - This is a local privilege escalation vulnerability requiring app installation.
🏢 Internal Only: HIGH - Malicious apps could exploit this to gain elevated privileges on employee devices.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Exploitation requires a malicious app to be installed on the device, but no user interaction is needed once installed.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Android Security Update June 2025 or later

Vendor Advisory: https://source.android.com/security/bulletin/2025-06-01

Restart Required: Yes

Instructions:

1. Check for Android system updates in Settings > System > System update. 2. Install the June 2025 security update or later. 3. Restart the device after installation.

🔧 Temporary Workarounds

Restrict app installations

android

Only install apps from trusted sources like Google Play Store and disable unknown sources installation.

Settings > Security > Install unknown apps > Disable for all apps

Use alternative IME

android

Install and use a third-party keyboard app instead of the default system IME.

Settings > System > Languages & input > Virtual keyboard > Manage keyboards

🧯 If You Can't Patch

  • Isolate vulnerable devices from accessing sensitive corporate resources
  • Implement mobile device management (MDM) with strict app whitelisting policies

🔍 How to Verify

Check if Vulnerable:

Check Android security patch level in Settings > About phone > Android security update. If date is before June 2025, device is vulnerable.

Check Version:

adb shell getprop ro.build.version.security_patch

Verify Fix Applied:

Verify Android security patch level shows June 2025 or later after applying update.

📡 Detection & Monitoring

Log Indicators:

  • Unusual IME session activity, unexpected key/motion event injections from non-system apps

Network Indicators:

  • None - this is a local vulnerability

SIEM Query:

android.security.cve AND CVE-2025-26450 OR ime.injection OR input.method.escalation

🔗 References

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