A buffer overflow was addressed with improved size validation. (CVE-2026-64747)
CVE-2026-64747 is a high-severity buffer overflow vulnerability affecting multiple Apple operating systems, including iOS, iPadOS, macOS Sequoia, macOS Sonoma, macOS Tahoe, tvOS, visionOS, and watchOS. The flaw was addressed by improved size validation in these OS versions. Exploitation could allow an application to execute arbitrary code with kernel privileges, posing a significant security risk.
AI Analysis
Technical Summary
This vulnerability is a buffer overflow (CWE-120) that was mitigated by improved size validation in Apple operating systems. The issue allows an application to potentially execute arbitrary code with kernel-level privileges. The vulnerability affects several Apple OS versions but is fixed starting from iOS 26.6, iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, and watchOS 26.6. The CVSS v3.1 base score is 7.8, indicating high severity, with attack vector local, low attack complexity, no privileges required, user interaction required, unchanged scope, and high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation could allow an application to execute arbitrary code with kernel privileges, potentially leading to full system compromise, including unauthorized access to sensitive data, system integrity breaches, and denial of service. The vulnerability's high CVSS score reflects the critical nature of the impact on confidentiality, integrity, and availability.
Mitigation Recommendations
This vulnerability is fixed in iOS 26.6, iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, and watchOS 26.6. Users and administrators should update affected systems to these versions or later to remediate the issue. No additional mitigation steps are indicated beyond applying the official patches.
A buffer overflow was addressed with improved size validation. (CVE-2026-64747)
Description
CVE-2026-64747 is a high-severity buffer overflow vulnerability affecting multiple Apple operating systems, including iOS, iPadOS, macOS Sequoia, macOS Sonoma, macOS Tahoe, tvOS, visionOS, and watchOS. The flaw was addressed by improved size validation in these OS versions. Exploitation could allow an application to execute arbitrary code with kernel privileges, posing a significant security risk.
CVSS v3.1
Score 7.8high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability is a buffer overflow (CWE-120) that was mitigated by improved size validation in Apple operating systems. The issue allows an application to potentially execute arbitrary code with kernel-level privileges. The vulnerability affects several Apple OS versions but is fixed starting from iOS 26.6, iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, and watchOS 26.6. The CVSS v3.1 base score is 7.8, indicating high severity, with attack vector local, low attack complexity, no privileges required, user interaction required, unchanged scope, and high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation could allow an application to execute arbitrary code with kernel privileges, potentially leading to full system compromise, including unauthorized access to sensitive data, system integrity breaches, and denial of service. The vulnerability's high CVSS score reflects the critical nature of the impact on confidentiality, integrity, and availability.
Mitigation Recommendations
This vulnerability is fixed in iOS 26.6, iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, and watchOS 26.6. Users and administrators should update affected systems to these versions or later to remediate the issue. No additional mitigation steps are indicated beyond applying the official patches.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-c58x-qgq4-vvcg
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-64747"]
- Ecosystems
- []
- Database Specific Severity
- HIGH
- Cvss Version
- 3.1
Threat ID: 6a83aa74bf8831d539e31f02
Added to database: 08/18/2026, 00:42:28 UTC
Last enriched: 08/18/2026, 01:11:28 UTC
Last updated: 08/18/2026, 01:53:10 UTC
Views: 3
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