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

Quick assessment

Affected
n/a mrubyc
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

mruby/c是ITOC mruby/c team.开源的一个C语言库。 mruby/c 3.4及之前版本存在代码问题漏洞，该漏洞源于对文件src/alloc.c中函数mrbc_raw_realloc的参数ptr操作不当，可能导致空指针取消引用。

CVSS 3.3 · Low EPSS 0.14% · P4

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2025-13397

Vulnerability Information
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Vulnerability Title
mrubyc alloc.c mrbc_raw_realloc null pointer dereference
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
空指针解引用
Source: CVE Program / CVE List V5
Vulnerability Title
mruby/c 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
mruby/c是ITOC mruby/c team.开源的一个C语言库。 mruby/c 3.4及之前版本存在代码问题漏洞，该漏洞源于对文件src/alloc.c中函数mrbc_raw_realloc的参数ptr操作不当，可能导致空指针取消引用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
- mrubyc 3.0 -

II. Public POCs for CVE-2025-13397

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III. Intelligence Information for CVE-2025-13397

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Showing top 20 of 26 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same vendor: n/a
Same weakness: CWE-476

V. Comments for CVE-2025-13397

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