CVE-2025-13120
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-11-13

Last updated on: 2026-04-29

Assigner: VulDB

Description
A vulnerability has been found in mruby up to 3.4.0. This vulnerability affects the function sort_cmp of the file src/array.c. Such manipulation leads to use after free. An attack has to be approached locally. The exploit has been disclosed to the public and may be used. The name of the patch is eb398971bfb43c38db3e04528b68ac9a7ce509bc. It is advisable to implement a patch to correct this issue.
CVSS Scores
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Meta Information
Published
2025-11-13
Last Modified
2026-04-29
Generated
2026-06-16
AI Q&A
2025-11-13
EPSS Evaluated
2026-06-15
NVD
CVE-2025-13120
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
mruby mruby to 3.4.0 (inc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-119 The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
CWE-416 The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
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Executive Summary

This vulnerability exists in the mruby software up to version 3.4.0, specifically in the function sort_cmp within the src/array.c file. It causes a use after free condition, which means the program may attempt to use memory after it has been freed, potentially leading to unexpected behavior or crashes. Exploitation requires local access to the system.

Impact Analysis

The vulnerability can lead to partial compromise of confidentiality, integrity, and availability of the affected system, as indicated by the CVSS scores. Since it is a use after free issue exploitable locally, an attacker with local access could potentially cause the program to behave unpredictably, possibly leading to data corruption, crashes, or other security impacts.

Mitigation Strategies

The immediate step to mitigate this vulnerability is to implement the patch named eb398971bfb43c38db3e04528b68ac9a7ce509bc that corrects the issue in mruby up to version 3.4.0.

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