CVE-2021-38521

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

0.87% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 58.4% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

2021-08-11 00:02Z5 YR AGO

Last updated

2024-08-04 01:44Z2 YR AGO

Reserved

2021-08-10

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Medium (CVSS 6.1)

CNA CVSS vector

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

Weaknesses

• CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')Class

Data version

5.1

Document digest

f4310c021c80a378665a965b423d1d5f9c746462c5eae5b855a6eb2810c9c7e9

• kb.netgear.comhttps://kb.netgear.com/000063764/Security-Advisory-for-Post-Authentication-Command-Injection-on-Some-Routers-PSV-2018-0566x_refsource_MISC