CVE-2018-21231

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

0.47% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 38.7% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

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

2020-04-24 14:22Z6 YR AGO

Last updated

2024-08-05 12:26Z2 YR AGO

Reserved

2020-04-20

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Medium (CVSS 5.2)

CNA CVSS vector

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

Weaknesses

No CWE assigned

Data version

5.1

Document digest

68d04f21b42b9a4439cd861e018441209de4ffd74f5fb13f913dca0fb6aa6f30

• kb.netgear.comhttps://kb.netgear.com/000055103/Security-Advisory-for-Security-Misconfiguration-on-Some-Routers-Gateways-and-Extenders-PSV-2016-0102x_refsource_CONFIRM