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CVE-2026-65400

CriticalPublished

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...

Published: Aug 6, 2026
Updated: Sep 14, 2026
Assigning CNA: apple
Evidence observed: Aug 18, 2026

Primary CVSS

9.8/ 10Critical

nvd · CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS probability estimate

10.5%

Moderate · next 30 days

Percentile: 95.6%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

CISA Known Exploited

This CVE appears in the CISA Known Exploited Vulnerabilities catalog.

Summary

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.

Sources

CVE-2026-65400Exploit
Apple MacOS Screen Sharing Arbitrary File read/write -> RCE
CVE-2026-65400Exploit
Proof-of-concept exploit for CVE-2026-65400 enabling authenticated file read/write, reverse shells, and persistence on macOS via Apple ScreenSharing.
CVE-2026-65400-pocPoC
Read-only PoC for CVE-2026-65400 — macOS Screen Sharing (screensharingd) pre-auth SRP bypass giving root file read. Patched in macOS 26.6.1 / 15.7.9 / 14.8.9.

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