CVE-2025-31240 Denial of service in macOS
Mounting a malicious AFP share can crash macOS systems, requiring users to apply Apple security updates.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-31240?
CVE-2025-31240 is a high-severity denial of service vulnerability in Apple Macos, published on 12 May 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
This issue was addressed with improved checks. This issue is fixed in macOS Sequoia 15.5, macOS Sonoma 14.7.6, macOS Ventura 13.7.6. Mounting a maliciously crafted AFP network share may lead to system termination.
Weakness: CWE-20
Which versions are affected by CVE-2025-31240?
It affects 1 product.
Products include Apple Macos.
How do I fix CVE-2025-31240?
No fix has been published for CVE-2025-31240 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2025-31240 being exploited?
There is no known exploitation of CVE-2025-31240 in the wild and no public exploit code.
Other vulnerabilities in Apple Macos
Sources
Also known as GHSA-53qx-2hww-8c99.