CVE-2025-30455

5.5 MEDIUM

📋 TL;DR

A macOS vulnerability allows malicious applications to access private information due to insufficient access controls. This affects macOS Sequoia before version 15.4 and macOS Sonoma before version 14.7.5. Users running these vulnerable macOS versions are at risk of data exposure.

💻 Affected Systems

Products:
  • macOS
Versions: macOS Sequoia before 15.4, macOS Sonoma before 14.7.5
Operating Systems: macOS
Default Config Vulnerable: ⚠️ Yes
Notes: All default configurations of affected macOS versions are vulnerable. Requires malicious app installation and execution.

📦 What is this software?

Macos by Apple

macOS is Apple's desktop and laptop operating system powering Mac computers used by millions of professionals, developers, creative professionals, and enterprise users worldwide. Built on a Unix foundation with the Darwin kernel and modern Cocoa frameworks, macOS delivers a seamless ecosystem integr...

Learn more about Macos →

Macos by Apple

macOS is Apple's desktop and laptop operating system powering Mac computers used by millions of professionals, developers, creative professionals, and enterprise users worldwide. Built on a Unix foundation with the Darwin kernel and modern Cocoa frameworks, macOS delivers a seamless ecosystem integr...

Learn more about Macos →

⚠️ Risk & Real-World Impact

🔴

Worst Case

Malicious app gains unauthorized access to sensitive user data including personal information, credentials, or confidential documents stored on the system.

🟠

Likely Case

Malware or compromised applications could exfiltrate user data, browser history, or authentication tokens without user knowledge.

🟢

If Mitigated

With proper app vetting and security controls, risk is limited to trusted-but-malicious applications bypassing sandbox restrictions.

🌐 Internet-Facing: LOW - This requires local application execution, not directly exploitable over network.
🏢 Internal Only: MEDIUM - Risk exists from malicious or compromised applications installed locally on macOS systems.

🎯 Exploit Status

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

Requires user to install and run malicious application. No public exploit details available in references.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: macOS Sequoia 15.4, macOS Sonoma 14.7.5

Vendor Advisory: https://support.apple.com/en-us/122373

Restart Required: Yes

Instructions:

1. Open System Settings 2. Click General 3. Click Software Update 4. Install available updates 5. Restart when prompted

🔧 Temporary Workarounds

Application Restriction

all

Only install applications from trusted sources like the Mac App Store or identified developers

System Settings > Privacy & Security > Allow apps downloaded from: App Store

🧯 If You Can't Patch

  • Implement application allowlisting to restrict which applications can run
  • Use macOS Gatekeeper settings to only allow apps from App Store and identified developers

🔍 How to Verify

Check if Vulnerable:

Check macOS version in System Settings > General > About. If version is Sequoia <15.4 or Sonoma <14.7.5, system is vulnerable.

Check Version:

sw_vers

Verify Fix Applied:

Verify macOS version is Sequoia 15.4 or Sonoma 14.7.5 or later after update.

📡 Detection & Monitoring

Log Indicators:

  • Unusual application access to protected directories or data stores
  • Console logs showing privacy violations

Network Indicators:

  • Unexpected outbound data transfers from applications

SIEM Query:

source="macOS" AND (event="privacy_violation" OR process_access="protected_data")

🔗 References

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