Auth bypass in Apple Macos
CVE-2026-65400
An authentication issue was addressed with improved state management. This issue is fixed in macOS Sequoia 15.7.9, macOS Sonoma 14.8.9, macOS Tahoe 26.6.1. An attacker on the network may be able to authenticate to Screen Sharing without va…
Vulnerability class: Broken Authentication
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N.
Affected products
- Apple Macos — versions 0
Weakness classification (CWE)
References
- product-security@apple.com (Release Notes, Vendor Advisory)
- product-security@apple.com (Release Notes, Vendor Advisory)
- product-security@apple.com (Release Notes, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-65400?
- CVE-2026-65400 is a high-severity vulnerability in Apple Macos, classified under Improper Authentication. CVSS score: 7.1/10. Published 2026-08-06.
- How severe is CVE-2026-65400?
- High severity. CVSS v3 base score is 7.1 out of 10.