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.
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Fri, 09 Jan 2026 19:45:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:matio_project:matio:1.5.28:*:*:*:*:*:*:*

Fri, 09 Jan 2026 00:15:00 +0000

Type Values Removed Values Added
Title matio: From CVEorg collector
References

Mon, 05 Jan 2026 12:30:00 +0000

Type Values Removed Values Added
First Time appeared Matio Project
Matio Project matio
Vendors & Products Matio Project
Matio Project matio

Fri, 02 Jan 2026 18:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-122
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 30 Dec 2025 20:00:00 +0000

Type Values Removed Values Added
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.
References

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-01-02T18:06:50.472Z

Reserved: 2025-06-16T00:00:00.000Z

Link: CVE-2025-50343

cve-icon Vulnrichment

Updated: 2026-01-02T15:59:56.997Z

cve-icon NVD

Status : Analyzed

Published: 2025-12-30T20:16:00.217

Modified: 2026-01-09T19:38:18.740

Link: CVE-2025-50343

cve-icon Redhat

Severity :

Publid Date: 2025-12-30T00:00:00Z

Links: CVE-2025-50343 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-01-05T12:25:21Z

Weaknesses