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Case File

CVE-2018-12247

HIGH · CVSS 7.5 EPSS 1.55% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2018-06-12 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links
github.com ↗ github.com ↗

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2018-12247
Severity
HIGH
CVSS
7.5
EPSS
1.55%

Original NVD 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).