CVE-2026-64776: An app may be able to disclose kernel memory in Apple macOS
The issue was addressed with improved bounds checks. 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 disclose kernel memory.
AI Analysis
Technical Summary
CVE-2026-64776 is a medium severity vulnerability in Apple macOS where an application may disclose kernel memory because of inadequate bounds checks. The issue is classified under CWE-125 (Out-of-bounds Read). Apple fixed this vulnerability by improving bounds checks in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, and macOS Tahoe 26.6. The CVSS vector indicates the attack requires local access with low complexity, no privileges, and user interaction, and it impacts confidentiality but not integrity or availability.
Potential Impact
An attacker with local access and the ability to run an application with user interaction could exploit this vulnerability to disclose sensitive kernel memory contents, potentially exposing confidential information. There is no impact on integrity or availability. No known exploits are reported in the wild.
Mitigation Recommendations
A fix is available and implemented in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, and macOS Tahoe 26.6. Users and administrators should update to these versions or later to remediate this vulnerability. No additional mitigation steps are indicated by the vendor.
CVE-2026-64776: An app may be able to disclose kernel memory in Apple macOS
Description
The issue was addressed with improved bounds checks. 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 disclose kernel memory.
CVSS v3.1
Score 5.5medium
Affected software
Apple
macOS
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-64776 is a medium severity vulnerability in Apple macOS where an application may disclose kernel memory because of inadequate bounds checks. The issue is classified under CWE-125 (Out-of-bounds Read). Apple fixed this vulnerability by improving bounds checks in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, and macOS Tahoe 26.6. The CVSS vector indicates the attack requires local access with low complexity, no privileges, and user interaction, and it impacts confidentiality but not integrity or availability.
Potential Impact
An attacker with local access and the ability to run an application with user interaction could exploit this vulnerability to disclose sensitive kernel memory contents, potentially exposing confidential information. There is no impact on integrity or availability. No known exploits are reported in the wild.
Mitigation Recommendations
A fix is available and implemented in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, and macOS Tahoe 26.6. Users and administrators should update to these versions or later to remediate this vulnerability. No additional mitigation steps are indicated by the vendor.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apple
- Date Reserved
- 2026-07-20T18:10:53.025Z
- State
- PUBLISHED
Threat ID: 6a67c1c89c2644c7f8cb15e0
Added to database: 07/27/2026, 20:38:32 UTC
Last enriched: 07/29/2026, 23:40:31 UTC
Last updated: 09/10/2026, 20:01:54 UTC
Views: 66
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