HOMEVULNERABILITIESCVE-2025-13120
MEDIUM

CVE-2025-13120

CWE-119Published: November 13, 2025· Updated: Jun 17, 2026

5.5
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2025-13120 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 5.5.

From a weakness classification perspective (CWE-119): Buffer overflow vulnerabilities can lead to arbitrary code execution or denial of service by corrupting adjacent memory.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Vendors & Products

mruby1 product(s)
mruby
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/mruby/mruby/commit/eb398971bfb43c38db3e04528b68ac9a7ce509bc
ADVISORYhttps://github.com/mruby/mruby/issues/6649
ADVISORYhttps://github.com/mruby/mruby/issues/6649#issue-3534393003
ADVISORYhttps://vuldb.com/?id.332325
ADVISORYhttps://vuldb.com/?submit.683435

All References (8)

→
https://github.com/makesoftwaresafe/mruby/pull/263Issue Tracking
→
https://github.com/mruby/mruby/
→
https://github.com/mruby/mruby/commit/eb398971bfb43c38db3e04528b68ac9a7ce509bcPatch
→
https://github.com/mruby/mruby/issues/6649Issue Tracking · Vendor Advisory
→
https://github.com/mruby/mruby/issues/6649#issue-3534393003Issue Tracking · Vendor Advisory
→
https://vuldb.com/?ctiid.332325Permissions Required · VDB Entry
→
https://vuldb.com/?id.332325Third Party Advisory · VDB Entry
→
https://vuldb.com/?submit.683435Third Party Advisory · VDB Entry

Quick Facts

CVE IDCVE-2025-13120
CVSS Score5.5 / 10
SeverityMEDIUM
WeaknessCWE-119
CISA KEVNo
Affected1 vendor(s)
PublishedNov 13, 2025

Related CVEs (CWE-119)

CVE-2011-0262
10.0
CVE-2011-0264
10.0
CVE-2009-1176
10.0
CVE-2009-1177
10.0
CVE-2011-0263
10.0
CVE-2011-0265
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2025-13120 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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