CVE-2025-43370
📋 TL;DR
This vulnerability in Xcode involves improper path validation that can cause a process crash when processing an overly large path value. It affects developers and systems running vulnerable versions of Xcode. The issue has been addressed in Xcode 26.
💻 Affected Systems
- Xcode
📦 What is this software?
Xcode by Apple
⚠️ Risk & Real-World Impact
Worst Case
Denial of service causing Xcode or dependent processes to crash, potentially disrupting development workflows and automated builds.
Likely Case
Local denial of service where an attacker with local access could crash Xcode processes by providing malicious input.
If Mitigated
Minimal impact with proper input validation and updated software.
🎯 Exploit Status
Requires ability to provide malicious path input to Xcode processes. Likely requires some level of access or interaction with vulnerable systems.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Xcode 26
Vendor Advisory: https://support.apple.com/en-us/125117
Restart Required: No
Instructions:
1. Open the Mac App Store 2. Search for Xcode 3. Update to version 26 or later 4. Alternatively, download Xcode 26 from developer.apple.com
🔧 Temporary Workarounds
Input validation for path parameters
allImplement custom validation for path inputs in applications that use Xcode tooling
🧯 If You Can't Patch
- Restrict access to Xcode and development systems to authorized personnel only
- Implement monitoring for Xcode process crashes and investigate any anomalies
🔍 How to Verify
Check if Vulnerable:
Check Xcode version: xcodebuild -version or open Xcode > About XcodeCheck Version:
xcodebuild -versionVerify Fix Applied:
Confirm Xcode version is 26 or later using xcodebuild -version📡 Detection & Monitoring
Log Indicators:
- Xcode process crashes, abnormal termination of Xcode-related processes
Network Indicators:
- None - local vulnerability
SIEM Query:
process.name:"Xcode" AND event.action:"process_crash"