CVE 9.8 CRITICAL

CVE-2025-50343_CVE-2025-50343

January 2, 2026 invoker category_cve

9.8 / 10

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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 Analysis

Heap-based memory corruption in Mat_VarCreateStruct() due to mismatched nfields value and actual number of strings in fields array

Basic Information

ID CVE-2025-50343

Source mitre

Published Dec 30, 2025 at 00:00

Modified Jan 2, 2026 at 18:06

Affected Product

Vendor tbeu

Product matio

Version 1.5.28

Affected Versions n/a n/a n/a

CWE Classification

CWE-122

AI Assessment

AI Score 9.8 / 10

AI Severity Critical

Vendor tbeu

Product matio

Version 1.5.28

References

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    "published": "2025-12-30T00:00:00.000Z",
    "modified": "2026-01-02T18:06:50.472Z",
    "type": "cve",
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    "source": "mitre",
    "references": "https://github.com/tbeu/matio/issues/275\nhttps://github.com/zakkanijia/POC/blob/main/matio/CVE-2025-50343/matio.md",
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