CVE-2025-43407

7.8 HIGH

📋 TL;DR

This vulnerability allows an application to escape its sandbox restrictions on affected Apple operating systems. It affects users running vulnerable versions of tvOS, macOS, iOS, iPadOS, and visionOS. The issue was addressed through improved entitlements management.

💻 Affected Systems

Products:
  • tvOS
  • macOS
  • iOS
  • iPadOS
  • visionOS
Versions: Versions prior to tvOS 26.1, macOS Tahoe 26.1, iOS 26.1, iPadOS 26.1, macOS Sequoia 15.7.2, macOS Sonoma 14.8.2, visionOS 26.1
Operating Systems: Apple tvOS, Apple macOS, Apple iOS, Apple iPadOS, Apple visionOS
Default Config Vulnerable: ⚠️ Yes
Notes: All standard configurations of affected versions are vulnerable. The vulnerability relates to sandbox escape through entitlements.

📦 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

An attacker could execute arbitrary code with elevated privileges, potentially gaining full system control, accessing sensitive data, or installing persistent malware.

🟠

Likely Case

Malicious apps could access restricted system resources, user data from other apps, or perform unauthorized actions beyond their intended permissions.

🟢

If Mitigated

With proper app vetting and security controls, exploitation risk is reduced, though the vulnerability still exists in unpatched systems.

🌐 Internet-Facing: MEDIUM
🏢 Internal Only: HIGH

🎯 Exploit Status

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

Exploitation requires a malicious app to be installed and executed. No public exploit code has been disclosed as of the advisory.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: tvOS 26.1, macOS Tahoe 26.1, iOS 26.1, iPadOS 26.1, macOS Sequoia 15.7.2, macOS Sonoma 14.8.2, visionOS 26.1

Vendor Advisory: https://support.apple.com/en-us/125632

Restart Required: Yes

Instructions:

1. Open Settings > General > Software Update on iOS/iPadOS/tvOS/visionOS. 2. Download and install the latest update. 3. For macOS, go to System Settings > General > Software Update. 4. Install the appropriate security update for your macOS version.

🔧 Temporary Workarounds

Restrict App Installation

all

Only install apps from trusted sources like the official App Store to reduce risk of malicious apps exploiting this vulnerability.

Enable App Sandboxing Enforcement

macos

Ensure system integrity protection and app sandboxing are enabled on macOS systems.

csrutil status

🧯 If You Can't Patch

  • Restrict installation of third-party applications to only essential, verified apps from trusted sources.
  • Implement network segmentation to isolate vulnerable devices from critical systems and data.

🔍 How to Verify

Check if Vulnerable:

Check the current OS version against the patched versions listed in the affected systems section.

Check Version:

iOS/iPadOS/tvOS/visionOS: Settings > General > About > Version. macOS: Apple menu > About This Mac > macOS version.

Verify Fix Applied:

Confirm the OS version matches or exceeds the patched versions: tvOS 26.1+, macOS Tahoe 26.1+, iOS 26.1+, iPadOS 26.1+, macOS Sequoia 15.7.2+, macOS Sonoma 14.8.2+, visionOS 26.1+.

📡 Detection & Monitoring

Log Indicators:

  • Unexpected app behavior, sandbox violation logs, entitlement access attempts beyond app scope

Network Indicators:

  • Unusual outbound connections from apps that shouldn't have network access

SIEM Query:

Search for process creation events where parent process is a sandboxed app but child process has elevated privileges or accesses restricted resources.

🔗 References

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