CVE-2025-43366 Information disclosure in macOS
An out-of-bounds read in macOS allows an app to disclose coprocessor memory, requiring an upgrade to the latest version.
- 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-2025-43366?
CVE-2025-43366 is a medium-severity vulnerability in Apple Macos, published on 15 Sep 2025. 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
An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Tahoe 26. An app may be able to disclose coprocessor memory.
Weakness: CWE-125
Which versions are affected by CVE-2025-43366?
It affects 1 product.
Products include Apple Macos.
How do I fix CVE-2025-43366?
No fix has been published for CVE-2025-43366 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-43366 being exploited?
There is no known exploitation of CVE-2025-43366 in the wild and no public exploit code.
Other vulnerabilities in Apple Macos
Sources
Also known as GHSA-xmfq-qr38-8jw9.