CVE-2026-84512: Mounting a maliciously crafted disk image may cause unexpected system termination or corrupt kernel memory in Apple macOS
CVE-2026-84512 is a vulnerability in Apple macOS where mounting a maliciously crafted disk image can cause unexpected system termination or corrupt kernel memory. The issue is due to a buffer overflow that has been fixed with improved bounds checking. The vulnerability is addressed in macOS Golden Gate 27, macOS Sequoia 15.8, and macOS Tahoe 26.7.
AI Analysis
Technical Summary
This vulnerability involves a buffer overflow in Apple macOS that occurs when mounting a specially crafted disk image. The flaw can lead to unexpected system termination or corruption of kernel memory. Apple fixed the issue by implementing improved bounds checking. The fix is included in macOS Golden Gate 27, macOS Sequoia 15.8, and macOS Tahoe 26.7.
Potential Impact
Successful exploitation of this vulnerability may cause the affected system to terminate unexpectedly or experience kernel memory corruption, potentially leading to system instability or crashes. There is no information about active exploitation in the wild.
Mitigation Recommendations
A fix is available and included in macOS Golden Gate 27, macOS Sequoia 15.8, and macOS Tahoe 26.7. Users and administrators should update to these versions or later to remediate this vulnerability.
CVE-2026-84512: Mounting a maliciously crafted disk image may cause unexpected system termination or corrupt kernel memory in Apple macOS
Description
CVE-2026-84512 is a vulnerability in Apple macOS where mounting a maliciously crafted disk image can cause unexpected system termination or corrupt kernel memory. The issue is due to a buffer overflow that has been fixed with improved bounds checking. The vulnerability is addressed in macOS Golden Gate 27, macOS Sequoia 15.8, and macOS Tahoe 26.7.
Affected software
Apple
macOS
Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a buffer overflow in Apple macOS that occurs when mounting a specially crafted disk image. The flaw can lead to unexpected system termination or corruption of kernel memory. Apple fixed the issue by implementing improved bounds checking. The fix is included in macOS Golden Gate 27, macOS Sequoia 15.8, and macOS Tahoe 26.7.
Potential Impact
Successful exploitation of this vulnerability may cause the affected system to terminate unexpectedly or experience kernel memory corruption, potentially leading to system instability or crashes. There is no information about active exploitation in the wild.
Mitigation Recommendations
A fix is available and included in macOS Golden Gate 27, macOS Sequoia 15.8, and macOS Tahoe 26.7. Users and administrators should update to these versions or later to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apple
- Date Reserved
- 2026-09-01T21:13:17.748Z
- State
- PUBLISHED
Threat ID: 6aa8610255bf5e2cf59d283a
Added to database: 09/14/2026, 21:02:58 UTC
Last enriched: 09/14/2026, 22:30:09 UTC
Last updated: 09/15/2026, 03:01:22 UTC
Views: 3
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.