CVE-2025-43512

7.8 HIGH

📋 TL;DR

A privilege escalation vulnerability in Apple operating systems allows malicious applications to gain elevated privileges. This affects macOS, iOS, and iPadOS users running vulnerable versions. The issue stems from a logic flaw that was addressed with improved security checks.

💻 Affected Systems

Products:
  • macOS
  • iOS
  • iPadOS
Versions: Versions prior to macOS Tahoe 26.2, macOS Sonoma 14.8.3, macOS Sequoia 15.7.3, iOS 18.7.3, iPadOS 18.7.3
Operating Systems: macOS, iOS, iPadOS
Default Config Vulnerable: ⚠️ Yes
Notes: All standard configurations are vulnerable. The vulnerability requires a malicious application to be installed on the device.

📦 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

A malicious app could gain root or system-level privileges, potentially compromising the entire device, accessing sensitive data, or installing persistent malware.

🟠

Likely Case

Malicious apps from untrusted sources could bypass sandbox restrictions, access user data, or perform unauthorized actions with elevated permissions.

🟢

If Mitigated

With proper app vetting and security controls, the risk is limited to sophisticated targeted attacks rather than widespread exploitation.

🌐 Internet-Facing: LOW
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Exploitation requires a malicious application to be installed and executed on the target device. No public exploit code is currently available.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: macOS Tahoe 26.2, macOS Sonoma 14.8.3, macOS Sequoia 15.7.3, iOS 18.7.3, iPadOS 18.7.3

Vendor Advisory: https://support.apple.com/en-us/125885

Restart Required: Yes

Instructions:

1. Open System Settings (macOS) or Settings (iOS/iPadOS). 2. Navigate to General > Software Update. 3. Install the available update. 4. Restart the device when prompted.

🔧 Temporary Workarounds

Restrict App Installation Sources

all

Only install applications from the official App Store or trusted enterprise sources to reduce attack surface.

Enable Gatekeeper

macOS

Ensure Gatekeeper is enabled on macOS to verify app signatures before execution.

sudo spctl --master-enable

🧯 If You Can't Patch

  • Implement strict application allowlisting policies
  • Isolate vulnerable devices from critical network segments

🔍 How to Verify

Check if Vulnerable:

Check current OS version against vulnerable versions listed in affected_systems.versions

Check Version:

macOS: sw_vers -productVersion, iOS/iPadOS: Settings > General > About > Version

Verify Fix Applied:

Verify OS version matches or exceeds patched versions listed in fix_official.patch_version

📡 Detection & Monitoring

Log Indicators:

  • Unexpected privilege escalation events in system logs
  • Unauthorized process execution with elevated privileges

Network Indicators:

  • Unusual outbound connections from system processes
  • Command and control traffic from elevated processes

SIEM Query:

process where parent_process_name in ('AppName', 'MaliciousApp') and integrity_level changed

🔗 References

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