CVE-2025-13397

Unknown Unknown - Not Provided

BaseFortify

Publication date: 2025-11-19

Last updated on: 2025-12-01

Assigner: VulDB

Description

A security vulnerability has been detected in mrubyc up to 3.4. This impacts the function mrbc_raw_realloc of the file src/alloc.c. Such manipulation of the argument ptr leads to null pointer dereference. An attack has to be approached locally. The name of the patch is 009111904807b8567262036bf45297c3da8f1c87. It is advisable to implement a patch to correct this issue.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2025-11-19

Last Modified

2025-12-01

Generated

2026-07-06

AI Q&A

2025-11-19

EPSS Evaluated

2026-07-05

NVD

CVE-2025-13397

EUVD

EUVD-2025-198212

Affected Vendors & Products

Vendor	Product	Version / Range
s-itoc	mruby\/c	to 3.4 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-404	The product does not release or incorrectly releases a resource before it is made available for re-use.
CWE-476	The product dereferences a pointer that it expects to be valid but is NULL.

Attack-Flow Graph

Executive Summary

This vulnerability exists in mrubyc up to version 3.4, specifically in the function mrbc_raw_realloc within the src/alloc.c file. It involves manipulation of the argument ptr that leads to a null pointer dereference. Exploiting this vulnerability requires local access to the system.

Impact Analysis

The vulnerability can cause a null pointer dereference, which may lead to a denial of service or application crash. Since the attack must be local, the impact is limited to users or processes with local access. The CVSS scores indicate a low to moderate impact primarily affecting availability.

Mitigation Strategies

It is advisable to implement the patch named 009111904807b8567262036bf45297c3da8f1c87 to correct this issue.

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