---
title: "CVE-2026-43688: Apple iOS & iPadOS & macOS Golden Gate - Denial of Service"
description: "Apple iOS 27, iPadOS 27, and macOS Golden Gate 27 contain a memory corruption caused by insufficient input validation when processing maliciously crafted files, letting attackers cause denial of service, exploit requires crafted malicious file."
url: https://panop.io/threat-heartbeat/CVE-2026-43688/
---

# CVE-2026-43688 Apple iOS & iPadOS & macOS Golden Gate - Denial of Service

Apple iOS 27, iPadOS 27, and macOS Golden Gate 27 contain a memory corruption caused by insufficient input validation when processing maliciously crafted files, letting attackers cause denial of service, exploit requires crafted malicious file.

CVSS base score 7.8 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.16% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-43688)

## Details

Type

Denial of Service

Impact

Denial Of Service

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Published

14 September 2026

Updated

15 October 2026

Weakness

[CWE-1021](https://cwe.mitre.org/data/definitions/1021.html)

## Vendor fix

Update to iOS 27, iPadOS 27, and macOS Golden Gate 27 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-43688](https://nvd.nist.gov/vuln/detail/CVE-2026-43688)
- [https://support.apple.com/en-us/149034](https://support.apple.com/en-us/149034)
- [https://support.apple.com/en-us/149035](https://support.apple.com/en-us/149035)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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