Apple just patched a critical macOS flaw that let hackers break in without a password
The Netherlands' National Cyber Security Centre (NCSC-NL) recently published an alarming security advisory about the new macOS flaw. It describes a vulnerability tied to an improper authentication process in Apple's line of desktop operating systems, which can have dire consequences on Mac systems when they have the built-in Screen Sharing... Read Entire Article
Apple has swiftly addressed a critical security flaw in its macOS operating system that could allow hackers to gain unauthorized access to systems without requiring a password. The vulnerability, tracked as CVE-2026-65400, is classified with a CVSS score of 9.8, indicating an extremely high severity. The National Cyber Security Centre (NCSC-NL) in the Netherlands highlighted the flaw, which stems from an improper authentication process in macOS versions Sequoia, Sonoma, and Tahoe.
This flaw allows attackers to exploit the system over the network and gain root access, effectively bypassing all security measures. Apple promptly released updates to patch the vulnerability in versions 15.7.9, 14.8.9, and 26.6.1. The flaw was discovered earlier this month, and proof-of-concept attacks have been observed targeting devices with the Screen Sharing feature enabled.
Apple acknowledged the discovery of the flaw to Alfredo Pesoli, co-founder and CEO of Bynario, a cybersecurity firm known for automated vulnerability identification solutions.
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