Unrated severityOSV Advisory· Published Dec 30, 2025· Updated Jan 2, 2026
CVE-2025-50343
CVE-2025-50343
Description
An issue was discovered in matio 1.5.28. A heap-based memory corruption can occur in Mat_VarCreateStruct() when the nfields value does not match the actual number of strings in the fields array. This leads to out-of-bounds reads and invalid memory frees during cleanup, potentially causing a segmentation fault or heap corruption.
AI Insight
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Affected products
3v1.5.0, v1.5.0b1, v1.5.1, …+ 1 more
- (no CPE)range: v1.5.0, v1.5.0b1, v1.5.1, …
- (no CPE)range: =1.5.28
Patches
Vulnerability mechanics
References
2News mentions
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