CVE-2025-13397 MEDIUM

CVE-2025-13397: mrubyc alloc.c mrbc_raw_realloc null pointer dereference

Vendor N/A
Product mrubyc
Weakness CWE-476
Published November 19, 2025
Last update November 19, 2025

CVSS base score

4.8/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

November 19, 2025 CVE published
November 19, 2025 Record updated