---
id: CVE-2026-43788
title: An integer overflow was addressed with improved input validation
summary: >-
  An integer overflow was addressed with improved input validation. This issue
  is fixed in macOS Golden Gate 27. Processing a maliciously crafted file may
  lead to a denial-of-service or potentially disclose memory contents.
severity: medium
cvss: 6.6
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:H'
cwe:
  - CWE-190
vendor: apple
product: macos
affected:
  - macos < 27.0
patched:
  - macos 27.0
published: '2026-09-14'
updated: '2026-09-15'
sourceUpdated: '2026-09-15T19:31:45.393'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-43788'
references:
  - url: 'https://support.apple.com/en-us/149035'
    label: product-security@apple.com
tags:
  - nvd
  - cve.org
epss: 0.00148
epssPercentile: 0.0336
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-15T15:33:15.711077Z'
ingestedAt: '2026-09-14T21:15:17.492Z'
---

## Overview

An integer overflow was addressed with improved input validation. This issue is fixed in macOS Golden Gate 27. Processing a maliciously crafted file may lead to a denial-of-service or potentially disclose memory contents.

## Affected

- `macos < 27.0`

## Remediation

Upgrade past the affected range:

- `macos 27.0`