CVE-2025-62608 MLX has heap-buffer-overflow in load()
A heap buffer overflow in MLX allows attackers to cause crashes or disclose information via malicious NumPy files.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-62608?
CVE-2025-62608 is a medium-severity memory corruption vulnerability in ml-explore mlx, published on 21 Nov 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
MLX is an array framework for machine learning on Apple silicon. Prior to version 0.29.4, there is a heap buffer overflow in mlx::core::load() when parsing malicious NumPy .npy files. Attacker-controlled file causes 13-byte out-of-bounds read, leading to crash or information disclosure. This issue has been patched in version 0.29.4.
Weakness: CWE-122
Which versions are affected by CVE-2025-62608?
3 open source packages ship an affected version, including mlx. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
mlx PyPI | All versions | 0.29.4 |
mlx PyPI | All versions | 0.29.4 |
mlx PyPI | All versions | 0.29.4 |
Products include Ml-Explore Mlx.
How do I fix CVE-2025-62608?
Upgrade mlx to 0.29.4 or later.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-62608 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-62608 exists.
Other vulnerabilities in ml-explore mlx
Sources
Also known as GHSA-w6vg-jg77-2qg6, PYSEC-2025-138.