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CISA lists this Apple macOS vulnerability as known exploited. The vendor's advisory has the fixed versions.
Apple macOS contains an improper authentication vulnerability that could allow an attacker on the network to authenticate to Screen Sharing without valid credentials.
Changes are dated when recorded; day views use the last saved version from that UTC day, and citations stay fixed.
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Explore global source statements, affected packages and advisory history for CVE-2026-65400. The catalog has a separate collection scope from Microsoft release records.
These records connect through source-stated identifiers. Shared identifiers or dates alone do not establish shared exposure, root cause or applicability.
CVE-2026-65400 · Microsoft / collected KEV context