Buffer overflow in Mruby
CVE-2025-13120
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 disclose…
Vulnerability class: Buffer Overflow
EPSS: 0.001 (2.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
Affected products
- Mruby
- N/a Mruby — versions 3.0, 3.1, 3.2
Weakness classification (CWE)
References
- cna@vuldb.com (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- cna@vuldb.com (signature, Permissions Required, permissions-required, VDB Entry)
- cna@vuldb.com (VDB Entry, Third Party Advisory, third-party-advisory)
- cna@vuldb.com (issue-tracking, Issue Tracking, Vendor Advisory)
- cna@vuldb.com (issue-tracking, Issue Tracking)
- cna@vuldb.com (issue-tracking, exploit, Issue Tracking, Vendor Advisory)
- cna@vuldb.com (Patch, patch)
- cna@vuldb.com (product)
Frequently asked questions
- What is CVE-2025-13120?
- CVE-2025-13120 is a medium-severity vulnerability in Mruby, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.3/10. Published 2025-11-13.
- How severe is CVE-2025-13120?
- Medium severity. CVSS v3 base score is 5.3 out of 10.