Name: CVE-2026-65400: Improper Authentication
Creator: Rapid7
Published: 2026-08-06T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-65400, CWE-287, Exploited in the Wild, CISA KEV Exploit, CVSS 9.8, EPSS 0.09905, CISA KEV

An authentication issue was addressed with improved state management. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.7.9, macOS Sonoma 14.8.9, macOS Tahoe 26.6.1, macOS Tahoe 26.7. An attacker on the network may be able to authenticate to Screen Sharing without valid credentials.

CVSS Details

CVSS 3.1 Base Score: 9.8
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Apple Osx Screensharing	—	Upgrade macOS to the latest version	Aug 25, 2026	Aug 6, 2026
Apple Osx Screensharingserver	—	Upgrade macOS to the latest version	Oct 5, 2026	Sep 14, 2026

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