---
id: "CVE-2026-112552"
kind: "vulnerability"
aliases: ["CVE-2026-112552"]
title: "macOS: out-of-bounds write from a network file server crashes the system"
severity: "unknown"
cvss: null
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["infrastructure", "mac-workstations", "macos", "network-file-shares"]
not_affected_if: ["no-network-file-shares"]
published_at: "2026-10-26T21:17:48+00:00"
first_seen_at: "2026-10-26T21:20:27+00:00"
updated_at: "2026-10-26T21:27:59+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-112552", "first_seen_at": "2026-10-26T21:20:27+00:00"}]
---

# macOS: out-of-bounds write from a network file server crashes the system

An out-of-bounds write in macOS can be triggered by a malicious network file server, causing the system to terminate unexpectedly. The fix is included in macOS Golden Gate 27.2, macOS Sequoia 15.8.2 and macOS Tahoe 26.7.2.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Run `sw_vers -productVersion` to see the installed macOS version and compare it with the fixed versions.
- unknown

## Fix

- Update macOS to `27.2` (Golden Gate), `15.8.2` (Sequoia) or `26.7.2` (Tahoe), depending on the installed release.

## Timeline

- 2026-10-26T21:20:27+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-112552

## From the sources

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27.2, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2. An attacker with control of a network file server may be able to cause unexpected system termination.

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_