CVE-2025-43353: 
macOS vulnerability analysis and mitigation

CVE-2025-43353 is a security vulnerability discovered in macOS operating systems that affects the Libinfo component. The vulnerability was disclosed on September 15, 2025, as part of Apple's security updates for macOS Sequoia 15.7 and macOS Sonoma 14.8. The issue affects multiple Mac models including Mac Studio, iMac, Mac Pro, Mac mini, MacBook Air, and MacBook Pro systems (Apple Support, Apple Support).

The vulnerability is characterized by a heap corruption issue that occurs when processing maliciously crafted strings in the Libinfo component. The technical root cause was identified as an issue with bounds checking implementation. Apple addressed this vulnerability by improving the bounds checks in the affected component (Apple Support).

When exploited, this vulnerability could lead to heap corruption in the affected systems. This type of vulnerability typically allows for memory manipulation which could potentially result in program crashes, data corruption, or possible code execution (Apple Support).

Apple has released security updates to address this vulnerability in macOS Sequoia 15.7 and macOS Sonoma 14.8. Users are advised to update their systems to the latest version to receive the security patch that implements improved bounds checks (Apple Support, Apple Support).