---
id: "CVE-2026-112601"
kind: "vulnerability"
aliases: ["CVE-2026-112601"]
title: "macOS Sequoia: integer overflow lets an app cause a denial-of-service"
severity: "unknown"
cvss: null
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["endpoints", "infrastructure", "macos", "macos-sequoia"]
not_affected_if: ["macos-sequoia-15.8.2-or-later"]
published_at: "2026-10-26T21:17:52+00:00"
first_seen_at: "2026-10-26T21:20:28+00:00"
updated_at: "2026-10-26T21:27:32+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-112601", "first_seen_at": "2026-10-26T21:20:28+00:00"}]
---

# macOS Sequoia: integer overflow lets an app cause a denial-of-service

An integer overflow in macOS Sequoia input handling can be triggered by an app, causing a denial-of-service. Apple fixed it in macOS Sequoia 15.8.2 with improved input validation.

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

## How to check

- Run `sw_vers -productVersion` on the Mac and compare against `15.8.2`
- Check System Settings > General > Software Update for pending macOS updates

## Fix

- Update macOS Sequoia to `15.8.2` or later

## Timeline

- 2026-10-26T21:20:28+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-112601

## From the sources

An integer overflow was addressed with improved input validation. This issue is fixed in macOS Sequoia 15.8.2. An app may be able to cause a denial-of-service.

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