CVE-2025-50343

Published: Dec 30, 2025Modified: Jan 9, 2026

9.8

Vector

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

Exploitability: 3.9 / Impact: 5.9

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

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.

Affected (1)

Products: Matio Project: Matio

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Matio Project Matio	Version 1.5.28

Related CWEs

Heap-based Buffer Overflow

A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

References (4)

https://github.com/tbeu/matio/issues/275

Source: cve@mitre.org

ExploitIssue TrackingThird Party Advisory

https://github.com/zakkanijia/POC/blob/main/matio/CVE-2025-50343/matio.md

Source: cve@mitre.org

ExploitThird Party Advisory

https://github.com/tbeu/matio/issues/275

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

ExploitIssue TrackingThird Party Advisory

https://github.com/zakkanijia/POC/blob/main/matio/CVE-2025-50343/matio.md

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

ExploitThird Party Advisory

Timeline

No history available yet.