CVE-2026-64727: An app may be able to cause unexpected system termination in Apple macOS
A type confusion issue was addressed with improved memory handling. This issue is fixed in macOS Tahoe 26.6, tvOS 26.6. An app may be able to cause unexpected system termination.
AI Analysis
Technical Summary
This vulnerability involves a type confusion flaw that could lead to improper memory handling, allowing an application to cause unexpected system termination. The issue has been resolved in macOS Tahoe 26.6 and tvOS 26.6 by applying improved memory management techniques. The CVSS 3.1 vector indicates network attack vector, low attack complexity, no privileges or user interaction required, and high impact on confidentiality, integrity, and availability.
Potential Impact
An attacker who exploits this vulnerability could cause unexpected system termination, potentially leading to denial of service and compromise of system stability. The CVSS score classifies the impact on confidentiality, integrity, and availability as high.
Mitigation Recommendations
This vulnerability is fixed in macOS Tahoe 26.6 and tvOS 26.6. Users and administrators should update to these versions or later to remediate the issue. No additional mitigation steps are indicated.
CVE-2026-64727: An app may be able to cause unexpected system termination in Apple macOS
Description
A type confusion issue was addressed with improved memory handling. This issue is fixed in macOS Tahoe 26.6, tvOS 26.6. An app may be able to cause unexpected system termination.
CVSS v3.1
Score 9.8critical
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a type confusion flaw that could lead to improper memory handling, allowing an application to cause unexpected system termination. The issue has been resolved in macOS Tahoe 26.6 and tvOS 26.6 by applying improved memory management techniques. The CVSS 3.1 vector indicates network attack vector, low attack complexity, no privileges or user interaction required, and high impact on confidentiality, integrity, and availability.
Potential Impact
An attacker who exploits this vulnerability could cause unexpected system termination, potentially leading to denial of service and compromise of system stability. The CVSS score classifies the impact on confidentiality, integrity, and availability as high.
Mitigation Recommendations
This vulnerability is fixed in macOS Tahoe 26.6 and tvOS 26.6. Users and administrators should update to these versions or later to remediate the issue. No additional mitigation steps are indicated.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-rgpx-f96c-9fm9
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-64727"]
- Database Specific Severity
- CRITICAL
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a6940369c2644c7f866b270
Added to database: 07/28/2026, 23:50:14 UTC
Last enriched: 07/29/2026, 11:37:56 UTC
Last updated: 09/11/2026, 22:08:26 UTC
Views: 111
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