CVE-2025-43362 Overview
CVE-2025-43362 is a critical information disclosure vulnerability affecting Apple iOS and iPadOS that allows malicious applications to monitor user keystrokes without obtaining proper permissions. The vulnerability stems from insufficient input validation checks within the operating system's keyboard handling mechanisms, enabling unauthorized access to sensitive user input data.
This flaw represents a significant privacy breach vector, as keystroke monitoring can capture credentials, personal messages, financial information, and other sensitive data entered by users across any application on the device.
Critical Impact
A malicious application exploiting this vulnerability can silently capture all user keystrokes without triggering permission prompts, potentially exposing passwords, credit card numbers, and private communications.
Affected Products
- Apple iOS (versions prior to iOS 18.7 and iOS 26)
- Apple iPadOS (versions prior to iPadOS 18.7 and iPadOS 26)
Discovery Timeline
- September 15, 2025 - CVE-2025-43362 published to NVD
- November 4, 2025 - Last updated in NVD database
Technical Details for CVE-2025-43362
Vulnerability Analysis
This vulnerability is classified under CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor). The flaw exists in how iOS and iPadOS validate application permissions for accessing keyboard input data. Under normal operation, applications should be explicitly granted permission before accessing keystroke information; however, the improper validation checks allow malicious apps to bypass this security control entirely.
The attack surface is particularly concerning because it operates at the system level, meaning any app installed on the device could potentially exploit this vulnerability to capture keystrokes from all other applications, including banking apps, password managers, and messaging platforms.
Root Cause
The root cause of CVE-2025-43362 lies in insufficient validation checks within the iOS/iPadOS keyboard input handling subsystem. The operating system failed to properly verify that applications had obtained the necessary entitlements and user permissions before allowing access to raw keyboard event data. This oversight enabled unauthorized interception of keystroke events by applications that had not been granted explicit keyboard monitoring permissions.
Attack Vector
Exploitation of this vulnerability requires the attacker to install a malicious application on the target device. This could be achieved through:
- App Store Distribution - A seemingly legitimate app with hidden keystroke monitoring functionality
- Enterprise Certificate Abuse - Side-loading malicious apps using enterprise distribution certificates
- Jailbroken Devices - Direct installation on compromised devices
Once installed, the malicious application can silently monitor all keyboard input without user awareness or consent. The network attack vector indicated in the CVSS metrics reflects the potential for remotely triggered exploitation scenarios where the malicious app receives commands or exfiltrates captured data over the network.
The attack requires no user interaction beyond the initial app installation, and the malicious app needs no special privileges to exploit the vulnerability.
Detection Methods for CVE-2025-43362
Indicators of Compromise
- Unexpected background activity from recently installed applications
- Unusual network traffic originating from apps that typically don't require internet access
- Applications requesting or exhibiting keyboard-related behaviors without legitimate purpose
- Battery drain anomalies potentially indicating background keystroke logging activity
Detection Strategies
- Monitor for applications accessing keyboard input APIs without corresponding permission grants
- Implement mobile threat detection solutions capable of identifying suspicious app behaviors
- Review installed applications for unexpected entitlements or capabilities
- Analyze network traffic for data exfiltration patterns matching keystroke logging activity
Monitoring Recommendations
- Deploy SentinelOne Mobile Threat Defense to detect and block malicious applications
- Enable detailed logging for application permission requests and access patterns
- Regularly audit installed applications against a whitelist of approved software
- Monitor for enterprise certificate abuse that could enable malicious app side-loading
How to Mitigate CVE-2025-43362
Immediate Actions Required
- Update all iOS devices to iOS 18.7 or iOS 26 immediately
- Update all iPadOS devices to iPadOS 18.7 or iPadOS 26 immediately
- Review recently installed applications and remove any suspicious or unnecessary apps
- Enable automatic updates to ensure timely deployment of future security patches
Patch Information
Apple has addressed this vulnerability through improved validation checks in iOS 18.7, iOS 26, iPadOS 18.7, and iPadOS 26. Users should update their devices immediately to receive the security fix. Detailed information about the patches is available in the following Apple security advisories:
Additional technical details were disclosed via the Full Disclosure Mailing List.
Workarounds
- Restrict app installations to only trusted, verified applications from the App Store
- Enable Lockdown Mode on devices handling sensitive information (available in iOS 16+)
- Use hardware keyboards via Bluetooth for entering highly sensitive information as a temporary measure
- Implement Mobile Device Management (MDM) policies to control which applications can be installed
# iOS Device Update via MDM Configuration Profile
# Deploy this profile to enforce minimum OS version requirements
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>PayloadType</key>
<string>com.apple.applicationaccess</string>
<key>enforcedSoftwareUpdateMinorDeferredInstallDelay</key>
<integer>0</integer>
<key>forceDelayedSoftwareUpdates</key>
<false/>
</dict>
</plist>
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
