CRITICALVulnerability
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 valid credentials.
Properties
- severity
- CRITICAL
- product
- macOS
- vulnerabilityName
- Apple macOS Improper Authentication Vulnerability
- dueDate
- 2026-08-21
- requiredAction
- Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discon
- dateAdded
- 2026-08-18
- score
- 9.8
- cve_id
- CVE-2026-65400
- vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- vendorProject
- Apple
- published_at
- 2026-08-06T22:18:14.533
- last_modified
- 2026-08-18T19:35:47.020
Related Entities (5)
DESCRIBES (1)
←[KEVEntry]Apple macOS Improper Authentication Vulnerability
AFFECTS_PRODUCT (1)
→[Product]
DESCRIBED_BY (1)
→[Source]NVD
HAS_WEAKNESS (1)
→[Weakness]Improper Authentication
KNOWN_EXPLOITED (1)
→[Source]CISA KEV
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