CVE-2026-43719: Mounting a maliciously crafted SMB network share may lead to system termination in Apple macOS
CVE-2026-43719 is a use-after-free vulnerability in Apple macOS that can cause system termination when mounting a maliciously crafted SMB network share. The issue was addressed by improved memory management and fixed in macOS Golden Gate 27, macOS Sequoia 15.8, and macOS Tahoe 26.7.
AI Analysis
Technical Summary
This vulnerability involves a use-after-free condition triggered by mounting a specially crafted SMB network share on Apple macOS. Exploitation may lead to system termination (crash). Apple fixed the issue by improving memory management in the affected components. The fix is included in macOS Golden Gate 27, macOS Sequoia 15.8, and macOS Tahoe 26.7.
Potential Impact
Successful exploitation results in system termination, causing denial of service. There is no indication of code execution or data compromise from the provided information.
Mitigation Recommendations
Apply the official fixes by updating to macOS Golden Gate 27, macOS Sequoia 15.8, or macOS Tahoe 26.7. These versions contain the patch that resolves the use-after-free vulnerability. No other mitigation steps are specified.
CVE-2026-43719: Mounting a maliciously crafted SMB network share may lead to system termination in Apple macOS
Description
CVE-2026-43719 is a use-after-free vulnerability in Apple macOS that can cause system termination when mounting a maliciously crafted SMB network share. The issue was addressed by improved memory management 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
This vulnerability involves a use-after-free condition triggered by mounting a specially crafted SMB network share on Apple macOS. Exploitation may lead to system termination (crash). Apple fixed the issue by improving memory management in the affected components. The fix is included in macOS Golden Gate 27, macOS Sequoia 15.8, and macOS Tahoe 26.7.
Potential Impact
Successful exploitation results in system termination, causing denial of service. There is no indication of code execution or data compromise from the provided information.
Mitigation Recommendations
Apply the official fixes by updating to macOS Golden Gate 27, macOS Sequoia 15.8, or macOS Tahoe 26.7. These versions contain the patch that resolves the use-after-free vulnerability. No other mitigation steps are specified.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apple
- Date Reserved
- 2026-05-01T22:46:21.645Z
- State
- PUBLISHED
Threat ID: 6aa860f455bf5e2cf59d22da
Added to database: 09/14/2026, 21:02:44 UTC
Last enriched: 09/14/2026, 22:23:59 UTC
Last updated: 09/15/2026, 03:01:22 UTC
Views: 3
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