CVE-2026-86950 Apple Multiple Products Out-of-Bounds Write

Exploited in the wild High 8.8 Published 28 Sep 2026 Updated 26 Oct 2026

An out-of-bounds write allows arbitrary code execution via a malicious file, affecting Apple iOS, iPadOS, and macOS users.

Exploited in the wild: Since 29 Sep 2026
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2026-86950?

CVE-2026-86950 is a high-severity memory corruption vulnerability in Apple Ipados, published on 28 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 18.7.11 and iPadOS 18.7.11, iOS 26.7.1 and iPadOS 26.7.1, macOS Sequoia 15.8.1, macOS Tahoe 26.7.1. Processing a maliciously crafted file may lead to arbitrary code execution. Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals on versions of iOS before iOS 27.

Weakness: CWE-787

Which versions are affected by CVE-2026-86950?

It affects 3 products.

Products include Apple Ipados, Apple Iphone Os, Apple Macos.

How do I fix CVE-2026-86950?

No fix has been published for CVE-2026-86950 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 13 Oct 2026.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2026-86950 being exploited?

Yes. Attackers have exploited CVE-2026-86950 in the wild since at least 29 Sep 2026.

Public exploit code: 7 proofs of concept on GitHub.

All Apple Ipados vulnerabilities

Sources

Also known as GHSA-3cf3-h799-fjvq.