CVE-2026-43710: An attacker 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 attacker may be able to cause unexpected system termination or corrupt kernel memory.
AI Analysis
Technical Summary
This vulnerability in Apple macOS involves improper memory handling that may enable an attacker to cause unexpected system termination or kernel memory corruption. The issue is classified under CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer). It affects macOS systems prior to the fixed versions Sequoia 15.7.8, Sonoma 14.8.8, and Tahoe 26.6. The vulnerability has a CVSS 3.1 base score of 9.8, reflecting network attack vector, low attack complexity, no privileges or user interaction required, and high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation can lead to system crashes or corruption of kernel memory, potentially allowing attackers to disrupt system operations or execute arbitrary code with kernel privileges. This poses a critical risk to system stability and security.
Mitigation Recommendations
A fix is available and has been released by Apple in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, and macOS Tahoe 26.6. Users and administrators should apply these updates promptly to remediate the vulnerability. No additional mitigation guidance is provided by the vendor advisory.
CVE-2026-43710: An attacker 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 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 in Apple macOS involves improper memory handling that may enable an attacker to cause unexpected system termination or kernel memory corruption. The issue is classified under CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer). It affects macOS systems prior to the fixed versions Sequoia 15.7.8, Sonoma 14.8.8, and Tahoe 26.6. The vulnerability has a CVSS 3.1 base score of 9.8, reflecting network attack vector, low attack complexity, no privileges or user interaction required, and high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation can lead to system crashes or corruption of kernel memory, potentially allowing attackers to disrupt system operations or execute arbitrary code with kernel privileges. This poses a critical risk to system stability and security.
Mitigation Recommendations
A fix is available and has been released by Apple in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, and macOS Tahoe 26.6. Users and administrators should apply these updates promptly to remediate the vulnerability. No additional mitigation guidance is provided by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apple
- Date Reserved
- 2026-05-01T22:46:21.644Z
- State
- PUBLISHED
Threat ID: 6a67c1b49c2644c7f8cb0e2b
Added to database: 07/27/2026, 20:38:12 UTC
Last enriched: 07/29/2026, 23:52:48 UTC
Last updated: 09/11/2026, 22:06:33 UTC
Views: 41
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.