Release record
Release notes
Editorial synthesis with inline references and a source ledger when citations are available.
Apple released macOS Sequoia 15.7.9 on August 6, 2026 as a focused security update for Screen Sharing authentication.[1]
Source ledger
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Apple Support · 2026-08-06T00:00:00Z · macOS Sequoia 15.7.9; released August 6, 2026
Documented & observed
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Release changes
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security · fixed
The update corrected an authentication path that could allow a network attacker to connect to Screen Sharing without valid credentials.
Recorded at Public
Milestones
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Public release
macOS Sequoia 15.7.9 addressed a Screen Sharing authentication weakness documented as CVE-2026-65400.
Historical context
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