CVE-2026-64767: A remote attacker may be able to cause unexpected system termination or corrupt kernel memory in Apple macOS
A buffer overflow 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. A remote attacker may be able to cause unexpected system termination or corrupt kernel memory.
AI Analysis
Technical Summary
This vulnerability is a buffer overflow in Apple macOS that can be triggered remotely without privileges or user interaction. Successful exploitation may lead to system crashes or kernel memory corruption, potentially allowing an attacker to compromise system stability and security. The flaw was mitigated by improved bounds checking in specific macOS versions: Sequoia 15.7.8, Sonoma 14.8.8, and Tahoe 26.6. No official remediation level or patch links are provided in the source data, but the vendor advisory states the issue is fixed in these versions.
Potential Impact
Exploitation of this vulnerability can result in complete system termination or corruption of kernel memory, which may lead to denial of service or potentially arbitrary code execution at the kernel level. The CVSS 3.1 base score of 9.8 reflects critical impact on confidentiality, integrity, and availability. No known active exploits have been reported.
Mitigation Recommendations
The vulnerability is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, and macOS Tahoe 26.6. Users and administrators should upgrade to these versions or later to remediate the issue. Patch status is confirmed by the vendor advisory stating the fix is included in these releases. No additional mitigation steps are indicated.
CVE-2026-64767: A remote attacker may be able to cause unexpected system termination or corrupt kernel memory in Apple macOS
Description
A buffer overflow 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. A remote attacker may be able to cause unexpected system termination or corrupt kernel memory.
CVSS v3.1
Score 9.8critical
Affected software
Apple
macOS
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability is a buffer overflow in Apple macOS that can be triggered remotely without privileges or user interaction. Successful exploitation may lead to system crashes or kernel memory corruption, potentially allowing an attacker to compromise system stability and security. The flaw was mitigated by improved bounds checking in specific macOS versions: Sequoia 15.7.8, Sonoma 14.8.8, and Tahoe 26.6. No official remediation level or patch links are provided in the source data, but the vendor advisory states the issue is fixed in these versions.
Potential Impact
Exploitation of this vulnerability can result in complete system termination or corruption of kernel memory, which may lead to denial of service or potentially arbitrary code execution at the kernel level. The CVSS 3.1 base score of 9.8 reflects critical impact on confidentiality, integrity, and availability. No known active exploits have been reported.
Mitigation Recommendations
The vulnerability is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, and macOS Tahoe 26.6. Users and administrators should upgrade to these versions or later to remediate the issue. Patch status is confirmed by the vendor advisory stating the fix is included in these releases. No additional mitigation steps are indicated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apple
- Date Reserved
- 2026-07-20T18:10:43.924Z
- State
- PUBLISHED
Threat ID: 6a67c1c79c2644c7f8cb1554
Added to database: 07/27/2026, 20:38:31 UTC
Last enriched: 07/29/2026, 20:37:36 UTC
Last updated: 09/11/2026, 22:06:34 UTC
Views: 71
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