> Source: [sk184905](https://support.checkpoint.com/results/sk/sk184905)

# sk184905 - Kernel Panics on MacBook M5 and MacBook A18 Neo (macOS Tahoe 26.4 / 26.4.1)

| Property | Value |
|----------|-------|
| Solution ID | sk184905 |
| Date Created | 2026-04-24 |
| Last Modified | 2026-05-18 |
| Technical Level | General |
| Products | Endpoint Security |
| Versions | E89.X, E88.X |
| OS | macOS |

## Symptoms

- * Affected Machines: MacBook A18 Neo, MacBook M5.
* Affected software versions: Machines running macOS Tahoe 26.4 and 26.4.1.
* Kernel panic messages and unexpected system restarts occurs on affected devices and versions, when the Endpoint Security Firewall blade is installed and active.

## Cause

Apple has confirmed a defect in macOS Tahoe 26.4 and 26.4.1 that affects how the operating system handles certain network traffic. This defect can lead to kernel panics and unexpected system restarts.

## Solution

Apple has resolved this issue in macOS Tahoe 26.5. To remediate the problem, upgrade affected devices to macOS Tahoe 26.5 or later.

For assistance, contact [Check Point Support](https://support.checkpoint.com/).

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