---
id: "CVE-2026-112620"
kind: "vulnerability"
aliases: ["CVE-2026-112620"]
title: "Apple OS: input validation flaw lets a network attacker cause denial of service"
severity: "unknown"
cvss: null
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["apple-devices", "infrastructure", "ios", "ipados", "macos", "tvos", "visionos"]
not_affected_if: ["already-on-27.2"]
published_at: "2026-10-26T21:17:55+00:00"
first_seen_at: "2026-10-26T21:20:29+00:00"
updated_at: "2026-10-26T21:25:19+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-112620", "first_seen_at": "2026-10-26T21:20:29+00:00"}]
---

# Apple OS: input validation flaw lets a network attacker cause denial of service

Apple fixed a denial-of-service flaw in iOS, iPadOS, macOS, tvOS and visionOS 27.2 through better input validation. The description says an attacker in a privileged network position may be able to crash or stall affected devices.

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

## How to check

- Check the installed OS version under Settings > General > About (iOS/iPadOS/visionOS/tvOS) or Apple menu > About This Mac (macOS).
- Compare against the fixed release `27.2` for each product listed.

## Fix

- Update iOS and iPadOS to `27.2` or later.
- Update macOS Golden Gate to `27.2` or later.
- Update tvOS and visionOS to `27.2` or later.

## Timeline

- 2026-10-26T21:20:29+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-112620

## From the sources

A denial-of-service issue was addressed with improved input validation. This issue is fixed in iOS 27.2 and iPadOS 27.2, macOS Golden Gate 27.2, tvOS 27.2, visionOS 27.2. An attacker in a privileged network position may be able to cause a denial-of-service.

---

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