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CVE-2025-43463 is a security vulnerability in Apple macOS caused by a parsing flaw in the handling of directory paths. The issue stems from insufficient validation of directory paths within the operating system’s components. This improper handling could allow a malicious application to construct a pathname containing special elements, such as directory traversal sequences like ‘../’. The core failure is that the system does not properly neutralize these special elements when constructing a pathname intended to be under a restricted parent directory. Consequently, the pathname may resolve to a location outside the intended, restricted directory. By exploiting this weakness, an app could bypass normal sandboxing or access control mechanisms. The vulnerability allows unauthorized access to sensitive user data stored on the file system. Successful exploitation compromises the confidentiality of user information, which could include personal documents, application data, or other private files. The flaw was identified in the StorageKit component of the operating system. It affects multiple macOS variants, including Sonoma, Tahoe, and Sequoia. Apple addressed the vulnerability by implementing improved path validation logic. The fix ensures proper sanitization of path inputs to prevent directory traversal outside of allowed boundaries.
dailycve form
Platform: Apple macOS
Version: Before 14.8.3
Vulnerability: Directory Path Parsing
Severity: Medium
date: 2025-12-12
Prediction: 2025-12-12 Patched
What Undercode Say:
sw_vers
softwareupdate --list
softwareupdate --install --all
How Exploit:
An attacker crafts a malicious application designed to exploit improper path validation. The app uses path traversal sequences (e.g., ‘../’) in API calls or file operations. The flawed parsing logic fails to contain the path within the app’s sandbox, allowing access to sensitive user data in other directories. This bypasses macOS’s sandbox and data protection policies.
Protection from this CVE
Apply Apple update to macOS Sonoma 14.8.3, macOS Tahoe 26.1, or macOS Sequoia 15.7.3. Restrict installation of untrusted applications. Enforce least privilege principles for user accounts.
Impact
Unauthorized access to sensitive user data. Compromise of data confidentiality. Potential violation of privacy and data protection regulations.
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Sources:
Reported By: nvd.nist.gov
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