CVE-2018-12247

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

1.48% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 73.6% of scored records. A rank, not a probability.

NVD base score

7.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2018-06-12 14:00Z8 YR AGO

Last updated

2024-09-16 20:03Z2 YR AGO

Reserved

2018-06-12

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-476NULL Pointer DereferenceBase

Data version

5.1

Document digest

632a08fd9f0876ba50a88f899b592d846e629ee31046beb3ff378d138e8e1536

• github.comhttps://github.com/mruby/mruby/issues/4036x_refsource_MISC
• github.comhttps://github.com/mruby/mruby/commit/55edae0226409de25e59922807cb09acb45731a2x_refsource_MISC