Critical severity9.8OSV Advisory· Published Dec 30, 2025· Updated Jun 17, 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
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
4v1.5.0, v1.5.0b1, v1.5.1, …+ 1 more
- (no CPE)range: v1.5.0, v1.5.0b1, v1.5.1, …
- cpe:2.3:a:matio_project:matio:1.5.28:*:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
2- github.com/tbeu/matio/issues/275nvdExploitIssue TrackingThird Party Advisory
- github.com/zakkanijia/POC/blob/main/matio/CVE-2025-50343/matio.mdnvdExploitThird Party Advisory
News mentions
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