Heap-based Buffer Overflow Affecting mruby/mruby package, versions [0,]


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
0.02% (4th percentile)

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  • Snyk IDSNYK-UNMANAGED-MRUBYMRUBY-10734145
  • published14 Jul 2025
  • disclosed9 Jul 2025
  • creditYifan Zhang

Introduced: 9 Jul 2025

CVE-2025-7207  (opens in a new tab)
CWE-122  (opens in a new tab)

How to fix?

A fix was pushed into the master branch but not yet published.

Overview

Affected versions of this package are vulnerable to Heap-based Buffer Overflow via the scope_new function of the nregs handler in codegen.c. An attacker can cause a denial of service by providing crafted input to the affected process.

CVSS Base Scores

version 4.0
version 3.1