CVE Watch24 de out. de 2026

CVE-2026-65400

Apple macOS Improper Authentication Vulnerability

CVSS

9.8

Crítica

EPSS

1.7%

p78

KEV

SIM

18 de ago. de 2026

Exploit Today

0-100

Publicado: 6 de ago. de 2026 · Última mod.: 24 de out. de 2026 · CWE-287

EPSS · 30d

1.7%EPSS · 30 dias1.7%

2026-10-082026-11-05

Ficha do catálogo KEV

Produto

Apple / macOS

Vulnerabilidade

Apple macOS Improper Authentication Vulnerability

Adicionado ao KEV

18 de ago. de 2026

Corrigir até

21 de ago. de 2026

Uso conhecido em ransomware

Não

Descrição resumida

Apple macOS contains an improper authentication vulnerability that could allow an attacker on the network to authenticate to Screen Sharing without valid credentials.

Ação necessária

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 discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Notas

https://support.apple.com/en-us/148170; https://support.apple.com/en-us/148171; https://support.apple.com/en-us/148172 ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-65400

Descrição técnica

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.

Referências oficiais

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