A buffer overflow was addressed with improved bounds checking. (CVE-2026-64771)
CVE-2026-64771 is a critical buffer overflow vulnerability addressed by improved bounds checking. It affects multiple Apple operating systems including iOS, iPadOS, macOS Sequoia, macOS Tahoe, tvOS, and visionOS. A remote attacker could exploit this flaw to cause unexpected application termination or heap corruption. The issue is fixed in versions iOS 26.6, iPadOS 26.6, macOS Sequoia 15.7.8, macOS Tahoe 26.6, tvOS 26.6, and visionOS 26.6.
AI Analysis
Technical Summary
This vulnerability is a buffer overflow (CWE-119) that was mitigated by implementing improved bounds checking. The flaw allows a remote attacker to potentially cause denial of service through application crashes or heap corruption. The CVSS 3.1 score is 9.8 (critical), indicating high impact on confidentiality, integrity, and availability with no required privileges or user interaction. The vulnerability affects multiple Apple OS platforms and has been addressed in specific patched versions.
Potential Impact
Successful exploitation can lead to unexpected application termination or heap corruption, which may result in denial of service or potentially enable further exploitation depending on the application context. The vulnerability impacts confidentiality, integrity, and availability as indicated by the CVSS vector.
Mitigation Recommendations
This vulnerability is fixed in iOS 26.6, iPadOS 26.6, macOS Sequoia 15.7.8, macOS Tahoe 26.6, tvOS 26.6, and visionOS 26.6. Users and administrators should update to these versions or later to remediate the issue. No additional mitigation steps are indicated.
A buffer overflow was addressed with improved bounds checking. (CVE-2026-64771)
Description
CVE-2026-64771 is a critical buffer overflow vulnerability addressed by improved bounds checking. It affects multiple Apple operating systems including iOS, iPadOS, macOS Sequoia, macOS Tahoe, tvOS, and visionOS. A remote attacker could exploit this flaw to cause unexpected application termination or heap corruption. The issue is fixed in versions iOS 26.6, iPadOS 26.6, macOS Sequoia 15.7.8, macOS Tahoe 26.6, tvOS 26.6, and visionOS 26.6.
CVSS v3.1
Score 9.8critical
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability is a buffer overflow (CWE-119) that was mitigated by implementing improved bounds checking. The flaw allows a remote attacker to potentially cause denial of service through application crashes or heap corruption. The CVSS 3.1 score is 9.8 (critical), indicating high impact on confidentiality, integrity, and availability with no required privileges or user interaction. The vulnerability affects multiple Apple OS platforms and has been addressed in specific patched versions.
Potential Impact
Successful exploitation can lead to unexpected application termination or heap corruption, which may result in denial of service or potentially enable further exploitation depending on the application context. The vulnerability impacts confidentiality, integrity, and availability as indicated by the CVSS vector.
Mitigation Recommendations
This vulnerability is fixed in iOS 26.6, iPadOS 26.6, macOS Sequoia 15.7.8, macOS Tahoe 26.6, tvOS 26.6, and visionOS 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-fpvq-93x4-j4x7
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-64771"]
- Ecosystems
- []
- Database Specific Severity
- CRITICAL
- Cvss Version
- 3.1
Threat ID: 6a83aa73bf8831d539e31d1d
Added to database: 08/18/2026, 00:42:27 UTC
Last enriched: 08/18/2026, 01:11:45 UTC
Last updated: 08/18/2026, 01:53:22 UTC
Views: 3
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