Crash or heap disclosure via truncated header
Published Nov 21, 2025 · Updated Nov 21, 2025
Heap buffer overflow in mlx::core::load() in Apple MLX before 0.29.4 allows attackers to crash applications via malicious .npy files. mlx/io/load.cpp constructs the declared 118-byte header as a null-terminated string, then reads header[34] without checking the shortened string's length. Exploitation requires an application to pass an attacker-controlled NumPy file to load(); the reported results are a crash or a 13-byte heap disclosure.
Summary
What happened
Heap buffer overflow in mlx::core::load() in Apple MLX before 0.29.4 allows attackers to crash applications via malicious .npy files. mlx/io/load.cpp constructs the declared 118-byte header as a null-terminated string, then reads header[34] without checking the shortened string's length. Exploitation requires an application to pass an attacker-controlled NumPy file to load(); the reported results are a crash or a 13-byte heap disclosure.
The record
- CVE
- CVE-2025-62608
- Published
- Nov 21, 2025
- Updated
- Nov 21, 2025
- Vendor
- Apple
- Product
- MLX
- Classifications
- CWE-122
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Nov 21, 2025CVE publishedPublication date reported by the CVE source.
- Nov 21, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=< 0.29.4
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
- Malicious NumPy header proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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