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9.8
CRITICAL CVSS 3.1
CVE-2025-50343
Matio Heap-Based Memory Corruption Vulnerability
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.

INFO

Published Date :

Dec. 30, 2025, 8:16 p.m.

Last Modified :

Jan. 9, 2026, 7:38 p.m.

Remotely Exploit :

Yes !

Source :

[email protected]
Affected Products

The following products are affected by CVE-2025-50343 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Matio_project matio
: Total Affected Vendor : 1 | Products : 1
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 CRITICAL 134c704f-9b21-4f2e-91b3-4a467353bcc0
Solution
Update matio to a version that addresses heap-based memory corruption in Mat_VarCreateStruct().
  • Update matio to a patched version.
  • Rebuild applications using matio.
  • Validate memory integrity after update.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2025-50343.

URL Resource
https://github.com/tbeu/matio/issues/275 Exploit Issue Tracking Third Party Advisory
https://github.com/zakkanijia/POC/blob/main/matio/CVE-2025-50343/matio.md Exploit Third Party Advisory
https://github.com/tbeu/matio/issues/275 Exploit Issue Tracking Third Party Advisory
https://github.com/zakkanijia/POC/blob/main/matio/CVE-2025-50343/matio.md Exploit Third Party Advisory
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-50343 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2025-50343 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2025-50343 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2025-50343 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Initial Analysis by [email protected]

    Jan. 09, 2026

    Action Type Old Value New Value
    Added CPE Configuration OR *cpe:2.3:a:matio_project:matio:1.5.28:*:*:*:*:*:*:*
    Added Reference Type MITRE: https://github.com/tbeu/matio/issues/275 Types: Exploit, Issue Tracking, Third Party Advisory
    Added Reference Type MITRE: https://github.com/zakkanijia/POC/blob/main/matio/CVE-2025-50343/matio.md Types: Exploit, Third Party Advisory
    Added Reference Type CISA-ADP: https://github.com/tbeu/matio/issues/275 Types: Exploit, Issue Tracking, Third Party Advisory
    Added Reference Type CISA-ADP: https://github.com/zakkanijia/POC/blob/main/matio/CVE-2025-50343/matio.md Types: Exploit, Third Party Advisory
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Jan. 02, 2026

    Action Type Old Value New Value
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Added CWE CWE-122
    Added Reference https://github.com/tbeu/matio/issues/275
    Added Reference https://github.com/zakkanijia/POC/blob/main/matio/CVE-2025-50343/matio.md
  • New CVE Received by [email protected]

    Dec. 30, 2025

    Action Type Old Value New Value
    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.
    Added Reference https://github.com/tbeu/matio/issues/275
    Added Reference https://github.com/zakkanijia/POC/blob/main/matio/CVE-2025-50343/matio.md
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 9.8
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact