CVE-2025-43375
📋 TL;DR
This vulnerability in Xcode allows an attacker to cause a denial-of-service by providing an overly large path value, which crashes the process. It affects developers using Xcode on macOS systems. The issue has been addressed in Xcode 26 with improved input validation.
💻 Affected Systems
- Xcode
📦 What is this software?
Xcode by Apple
⚠️ Risk & Real-World Impact
Worst Case
Complete denial-of-service for Xcode processes, disrupting development workflows and potentially causing data loss in unsaved work.
Likely Case
Application crash when processing maliciously crafted path inputs, requiring restart of Xcode.
If Mitigated
No impact if patched to Xcode 26 or if input validation prevents large path values.
🎯 Exploit Status
Exploitation requires crafting specific path inputs; no public exploit code is available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Xcode 26
Vendor Advisory: https://support.apple.com/en-us/125117
Restart Required: No
Instructions:
1. Open App Store on macOS. 2. Search for Xcode. 3. Click 'Update' to install Xcode 26. 4. Alternatively, download from developer.apple.com.
🔧 Temporary Workarounds
Input validation for path processing
allImplement custom validation to reject overly large path values in code that processes file paths.
🧯 If You Can't Patch
- Restrict file processing to trusted sources only
- Monitor Xcode processes for unexpected crashes and investigate root causes
🔍 How to Verify
Check if Vulnerable:
Check Xcode version: Open Xcode → About Xcode. If version is below 26, you are vulnerable.Check Version:
xcodebuild -versionVerify Fix Applied:
Confirm Xcode version is 26 or higher in About Xcode dialog.📡 Detection & Monitoring
Log Indicators:
- Xcode crash logs with segmentation fault or memory errors
- Console.app entries showing Xcode termination
Network Indicators:
- None - this is a local vulnerability
SIEM Query:
source="console" AND process="Xcode" AND (event="crash" OR event="terminated")