A security flaw has been identified in Apple’s macOS operating system. This is an improper authentication issue, meaning an attacker who is connected to the same network as your Mac could potentially access the device’s Screen Sharing feature even if they do not have valid login credentials.
This could be a concern for users who rely on Macs for work related to their websites or business operations, as it may allow an unauthorized person to access files, data, or systems on the device without your permission.
Source: CISA Known Exploited Vulnerabilities Catalog — https://nvd.nist.gov/vuln/detail/CVE-2026-65400
