HOMEVULNERABILITIESCVE-2025-7207
MEDIUM

CVE-2025-7207

CWE-119Published: July 9, 2025· Updated: Jun 17, 2026

5.5
CVSS v3.1

Official Description

A vulnerability, which was classified as problematic, was found in mruby up to 3.4.0-rc2. Affected is the function scope_new of the file mrbgems/mruby-compiler/core/codegen.c of the component nregs Handler. The manipulation leads to heap-based buffer overflow. 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 1fdd96104180cc0fb5d3cb086b05ab6458911bb9. It is recommended to apply a patch to fix this issue.

NVD Source

Technical Analysis

CVE-2025-7207 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 · 2 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/1fdd96104180cc0fb5d3cb086b05ab6458911bb9
ADVISORYhttps://vuldb.com/?id.315156
ADVISORYhttps://vuldb.com/?submit.607683

All References (8)

→
https://github.com/mruby/mruby/commit/1fdd96104180cc0fb5d3cb086b05ab6458911bb9Patch
→
https://github.com/mruby/mruby/issues/6509Exploit · Issue Tracking
→
https://github.com/mruby/mruby/issues/6509#event-17145516649Exploit · Issue Tracking
→
https://github.com/user-attachments/files/19619499/mruby_crash.txtExploit
→
https://vuldb.com/?ctiid.315156Permissions Required · VDB Entry
→
https://vuldb.com/?id.315156Third Party Advisory · VDB Entry
→
https://vuldb.com/?submit.607683Third Party Advisory · VDB Entry
→
https://github.com/mruby/mruby/issues/6509Exploit · Issue Tracking

Quick Facts

CVE IDCVE-2025-7207
CVSS Score5.5 / 10
SeverityMEDIUM
WeaknessCWE-119
CISA KEVNo
Affected1 vendor(s)
PublishedJul 9, 2025

Related CVEs (CWE-119)

CVE-2012-5964
10.0
CVE-2002-2251
10.0
CVE-2012-5965
10.0
CVE-2008-4556
10.0
CVE-2001-0803
10.0
CVE-2012-5963
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2025-7207 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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