Vulnerability DatabaseCVE-2025-31240

CVE-2025-31240:
macOS vulnerability analysis and mitigation

Overview

CVE-2025-31240 is a security vulnerability discovered in Apple's macOS operating systems affecting macOS Ventura 13.7.6, macOS Sequoia 15.5, and macOS Sonoma 14.7.6. The vulnerability was discovered by researcher Dave G. and publicly disclosed on May 12, 2025. The issue exists in the AFP (Apple Filing Protocol) file-sharing component of macOS systems (Wiz Report, Apple Support).

Technical details

The vulnerability stems from improper checks in the AFP file-sharing system component of macOS. When a maliciously crafted AFP network share is mounted, it can trigger system termination due to inadequate validation of the share's structure. The vulnerability has been assigned a CVSS 3.1 base score of 7.5 (HIGH) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H (NVD, Wiz Report).

Impact

When successfully exploited, this vulnerability can lead to system termination (crash) of the affected macOS system. This creates a denial-of-service condition that can disrupt user operations and system availability (Wiz Report).

Mitigation and workarounds

Apple has released security updates to address this vulnerability in macOS Ventura 13.7.6, macOS Sequoia 15.5, and macOS Sonoma 14.7.6. Users are strongly advised to update their systems to the latest version to protect against this vulnerability (Apple Support, Wiz Report).

Community reactions

Security researchers and industry experts have highlighted this vulnerability as part of a larger security update from Apple that addressed multiple critical issues. The vulnerability has received particular attention due to its potential impact on system stability and its presence across multiple macOS versions (Wiz Report).