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CVE-2025-7207

mruby nregs codegen.c scope_new heap-based overflow

Published: Jul 9, 2025Updated: Apr 29, 2026 Sources: CVE List NVDCWE-119
NVD MITRE
3.3CVSSLOW
EPSS Score
0.2%
Top 88.5%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:LAC:LPR:LUI:NS:UC:NI:NA:L
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:LAvailability
Low
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Weaknesses

CWE-119CWE-122CWE-787

Affected Products

mrubymruby
LibraryLibrary
OSS Libraries
mrubyn/a
mrubyoss-projectOSS Libraries

Attack Graph

Products CVE Techniques Tactics

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Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://github.com/mruby/mruby/commit/1fdd96104180cc0fb5d3cb086b05ab6458911bb9
github.com
https://github.com/mruby/mruby/issues/6509
github.com
https://github.com/mruby/mruby/issues/6509#event-17145516649
github.com
and 4 more references View all →

Timeline

Published
Jul 9, 2025
Last Updated
Apr 29, 2026

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