Vulnerability · Published Nov 21, 2025 · Assigned by GitHub_M

CVE-2025-62609MLX has Wild Pointer Dereference in load_gguf()

Medium 5.5

In plain English

A medium-severity null pointer dereference in mlx from ml-explore. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 35% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)5.5Medium

Exploit odds (30 days)0.4%top 65.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

MLX is an array framework for machine learning on Apple silicon. Prior to version 0.29.4, there is a segmentation fault in mlx::core::load_gguf() when loading malicious GGUF files. Untrusted pointer from external gguflib library is dereferenced without validation, causing application crash. This issue has been patched in version 0.29.4.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
PyPI	mlx	0.29.4	GHSA-j842-xgm4-wf88
PyPI	mlx	0.29.4	PYSEC-2025-139

Affected products (as reported)

Vendor	Product	Versions
ml-explore	mlx	< 0.29.4

Weakness: CWE-476 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

References

https://github.com/ml-explore/mlx/security/advisories/GHSA-j842-xgm4-wf88 x_refsource_CONFIRM