CVE-2018-12247

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

An issue was discovered in mruby 1.4.1. There is a NULL pointer dereference in mrb_class, related to certain .clone usage, because mrb_obj_clone in kernel.c copies flags other than the MRB_FLAG_IS_FROZEN flag (e.g., the embedded flag).

Metrics

CVSS 3.0 7.5/10CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-476

Affected software

VendorProductVersions
n/an/an/a

References

Timeline

Published
Jun 12, 2018
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2018-12247: High severity, CVSS 7.5 | Vulnix