CVE-2026-28981 Memory corruption in macOS

High 7.8 Published Updated

A buffer overflow in macOS allows arbitrary code execution via a maliciously crafted image, requiring users to apply security updates.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2026-28981?

CVE-2026-28981 is a high-severity memory corruption vulnerability in Apple Macos, published on 27 Jul 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

A buffer overflow was addressed with improved bounds checking. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. Processing a maliciously crafted image may lead to arbitrary code execution.

Weakness: CWE-120

Which versions are affected by CVE-2026-28981?

It affects 1 product.

Products include Apple Macos.

How do I fix CVE-2026-28981?

No fix has been published for CVE-2026-28981 yet. Limit exposure of the affected software until one is available.

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

Is CVE-2026-28981 being exploited?

There is no known exploitation of CVE-2026-28981 in the wild and no public exploit code.

All Apple Macos vulnerabilities

Sources

Also known as GHSA-hx6f-whc9-5pw7.

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