CVE-2018-12249

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

2.12% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 80.2% 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:3.1/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

2024-08-05 08:30Z2 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

9b53e295299723c7ebcfc0bde8bdfa161ae5c9de325aa13ccc4f5755cce6482d

• github.comhttps://github.com/mruby/mruby/issues/4037x_refsource_MISC
• github.comhttps://github.com/mruby/mruby/commit/faa4eaf6803bd11669bc324b4c34e7162286bfa3x_refsource_MISC
• lists.debian.org[debian-lts-announce] 20220506 [SECURITY] [DLA 2996-1] mruby security updatehttps://lists.debian.org/debian-lts-announce/2022/05/msg00006.htmlmailing-listx_refsource_MLIST