CVE-2026-84579: Opening a file referencing a network share may lead to unexpected software execution in Apple macOS
Description
A logic issue in Apple macOS could allow unexpected software execution when opening a file that references a network share. This vulnerability has been addressed with improved checks and fixed in macOS Golden Gate 27, macOS Sequoia 15.8, and macOS Tahoe 26.7.
Affected software
Apple
macOS
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-84579 describes a logic flaw in macOS where opening a file referencing a network share may lead to unexpected software execution. Apple fixed this issue by implementing improved validation checks. The vulnerability affects versions prior to macOS Sequoia 15.8, macOS Tahoe 26.7, and macOS Golden Gate 27.
Potential Impact
Successful exploitation could result in unexpected software execution on affected macOS systems, potentially allowing an attacker to run arbitrary code. No known exploits in the wild have been reported.
Mitigation Recommendations
Apply the official fixes by upgrading to macOS Golden Gate 27, macOS Sequoia 15.8, or macOS Tahoe 26.7 or later. These versions contain the improved checks that address the logic issue. No additional mitigation steps are indicated by the vendor.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apple
- Date Reserved
- 2026-09-01T21:13:17.756Z
- State
- PUBLISHED
Threat ID: 6ad6c1992cdf04f656e4957f
Added to database: 10/20/2026, 01:19:21 UTC
Last enriched: 10/20/2026, 02:04:14 UTC
Last updated: 10/20/2026, 02:08:16 UTC
Views: 3
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