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Apple macOS security update for CVE-2026-65400

Security Patch Release
First reported
Last updated
Happening score
H score 46
1 unique sources, 1 articles

Summary

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Apple released fixes for CVE-2026-65400 in macOS Tahoe 26.6.1 and related releases, closing a Screen Sharing authentication bypass that could let network attackers connect without valid credentials. The update reduces exposure on systems that expose TCP port 5900 and is especially urgent because the flaw is being actively abused in the wild. Administrators should install the patched macOS versions and disable Screen Sharing if it is not needed.

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Timeline

  1. 14.08.2026 17:59 2 articles · 1h ago

    Apple releases macOS fixes for CVE-2026-65400

    Mitigation Patch Update

    Apple released fixes for CVE-2026-65400 in macOS Tahoe 26.6.1, macOS Sequoia 15.7.9, and macOS Sonoma 14.8.9, closing a macOS Screen Sharing authentication bypass that allowed network-based attackers to gain access without valid credentials.

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  2. 14.08.2026 17:59 1 articles · 1h ago

    NCSC warns of active exploitation of CVE-2026-65400 in macOS Screen Sharing

    Exploitation Observed

    The Netherlands' National Cyber Security Centre warned that CVE-2026-65400 is being actively exploited on macOS Screen Sharing systems after public exploit code emerged, especially where TCP port 5900 is exposed to the internet; the agency said affected systems had root access obtained and a Monero cryptocurrency miner deployed.

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