CVE-2026-84588 Memory corruption in macOS
Mounting a malicious disk image can cause kernel memory corruption or system termination, requiring an OS upgrade.
- Exploited in the wild
- Not known
- 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-2026-84588?
CVE-2026-84588 is a medium-severity memory corruption vulnerability in Apple Macos, published on 14 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
A memory corruption issue was addressed by removing the vulnerable code. This issue is fixed in macOS Golden Gate 27. Mounting a maliciously crafted disk image may cause unexpected system termination or corrupt kernel memory.
Weakness: CWE-787
Which versions are affected by CVE-2026-84588?
It affects 1 product.
Products include Apple Macos.
How do I fix CVE-2026-84588?
No fix has been published for CVE-2026-84588 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-2026-84588 being exploited?
There is no known exploitation of CVE-2026-84588 in the wild and no public exploit code.
Other vulnerabilities in Apple Macos
Sources
Also known as GHSA-q42m-7jfc-9fwh.