An out-of-bounds read was addressed with improved bounds checking. (CVE-2026-64762)
An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. An app may be able to cause unexpected system termination.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-64762) is an out-of-bounds read caused by inadequate bounds checking in macOS. An unprivileged application may exploit this flaw to trigger unexpected system termination, impacting system availability. The flaw is classified under CWE-125 (Out-of-bounds Read). The vendor has released fixes in macOS Sequoia 15.7.8, Sonoma 14.8.8, and Tahoe 26.6 to address this issue.
Potential Impact
Successful exploitation can lead to unexpected system termination, resulting in denial of service. Confidentiality and integrity impacts are rated high in the CVSS vector, indicating potential for broader impact, but the primary confirmed impact is system availability disruption.
Mitigation Recommendations
Apply the official patches by upgrading to macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, or macOS Tahoe 26.6. These versions contain the fix with improved bounds checking. No other mitigation is indicated by the vendor advisory.
An out-of-bounds read was addressed with improved bounds checking. (CVE-2026-64762)
Description
An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 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 (CVE-2026-64762) is an out-of-bounds read caused by inadequate bounds checking in macOS. An unprivileged application may exploit this flaw to trigger unexpected system termination, impacting system availability. The flaw is classified under CWE-125 (Out-of-bounds Read). The vendor has released fixes in macOS Sequoia 15.7.8, Sonoma 14.8.8, and Tahoe 26.6 to address this issue.
Potential Impact
Successful exploitation can lead to unexpected system termination, resulting in denial of service. Confidentiality and integrity impacts are rated high in the CVSS vector, indicating potential for broader impact, but the primary confirmed impact is system availability disruption.
Mitigation Recommendations
Apply the official patches by upgrading to macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, or macOS Tahoe 26.6. These versions contain the fix with improved bounds checking. No other mitigation is indicated by the vendor advisory.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-64c6-f4j7-6842
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-64762"]
- Database Specific Severity
- CRITICAL
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a6941f59c2644c7f86cc1f1
Added to database: 07/28/2026, 23:57:41 UTC
Last enriched: 07/29/2026, 11:11:15 UTC
Last updated: 09/11/2026, 19:31:57 UTC
Views: 110
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