CVE-2026-64697: An app may be able to cause unexpected system termination or corrupt kernel memory in Apple macOS
The issue was addressed with improved memory handling. 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 or corrupt kernel memory.
AI Analysis
Technical Summary
CVE-2026-64697 is a critical memory handling vulnerability in Apple macOS that may allow an application to cause unexpected system termination or corrupt kernel memory. The vulnerability is identified as CWE-119, indicating a classic memory safety issue. The CVSS 3.1 base score is 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H), reflecting network attack vector, low attack complexity, no privileges or user interaction required, and high impact on confidentiality, integrity, and availability. Apple addressed this issue with improved memory handling and released fixes in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, and macOS Tahoe 26.6.
Potential Impact
Exploitation of this vulnerability can lead to unexpected system crashes or corruption of kernel memory, potentially allowing an attacker to compromise system stability and security. The high CVSS score indicates that confidentiality, integrity, and availability of the affected system can be fully compromised without any required privileges or user interaction.
Mitigation Recommendations
This vulnerability has been fixed by Apple in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, and macOS Tahoe 26.6. Users and administrators should apply these official updates to remediate the issue. No additional mitigation steps are indicated beyond applying the vendor-provided patches.
CVE-2026-64697: An app may be able to cause unexpected system termination or corrupt kernel memory in Apple macOS
Description
The issue was addressed with improved memory handling. 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 or corrupt kernel memory.
CVSS v3.1
Score 9.8critical
Affected software
Apple
macOS
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-64697 is a critical memory handling vulnerability in Apple macOS that may allow an application to cause unexpected system termination or corrupt kernel memory. The vulnerability is identified as CWE-119, indicating a classic memory safety issue. The CVSS 3.1 base score is 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H), reflecting network attack vector, low attack complexity, no privileges or user interaction required, and high impact on confidentiality, integrity, and availability. Apple addressed this issue with improved memory handling and released fixes in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, and macOS Tahoe 26.6.
Potential Impact
Exploitation of this vulnerability can lead to unexpected system crashes or corruption of kernel memory, potentially allowing an attacker to compromise system stability and security. The high CVSS score indicates that confidentiality, integrity, and availability of the affected system can be fully compromised without any required privileges or user interaction.
Mitigation Recommendations
This vulnerability has been fixed by Apple in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, and macOS Tahoe 26.6. Users and administrators should apply these official updates to remediate the issue. No additional mitigation steps are indicated beyond applying the vendor-provided patches.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apple
- Date Reserved
- 2026-07-20T18:09:01.158Z
- State
- PUBLISHED
Threat ID: 6a67c1bf9c2644c7f8cb12b5
Added to database: 07/27/2026, 20:38:23 UTC
Last enriched: 07/30/2026, 00:01:32 UTC
Last updated: 09/10/2026, 20:02:04 UTC
Views: 52
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.