High severity7.5OSV Advisory· Published Jun 12, 2018· Updated Jun 17, 2026

CVE-2018-12249

Description

An issue was discovered in mruby 1.4.1. There is a NULL pointer dereference in mrb_class_real because "class BasicObject" is not properly supported in class.c.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Mruby/Mruby3 versions
cpe:2.3:a:mruby:mruby:1.4.1:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:a:mruby:mruby:1.4.1:*:*:*:*:*:*:*
- (no CPE)range: 1.0.0, 1.1.0, 1.2.0, …
- (no CPE)range: = 1.4.1
Debian/linux
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

Patches

Vulnerability mechanics

References

github.com/mruby/mruby/commit/faa4eaf6803bd11669bc324b4c34e7162286bfa3nvdPatchThird Party Advisory
github.com/mruby/mruby/issues/4037nvdExploitIssue TrackingThird Party Advisory
lists.debian.org/debian-lts-announce/2022/05/msg00006.htmlnvdMailing ListThird Party Advisory

News mentions

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cvss	0.488
epss	0.002
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000