CVE-2021-28937

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

4.15% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 90.2% 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:H/I:N/A:N

NVD analysis status

Modified. NVD last modified this record on 2026-07-09.

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

2021-03-29 12:04Z5 YR AGO

Last updated

2026-07-09 00:12Z1 MO AGO

Reserved

2021-03-19

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-312Cleartext Storage of Sensitive InformationBase

Data version

5.2

Document digest

a70ae1f6e4a295996bfe246c7995c8765c5deacb84f7d80eee87a3c79a4e16d7

• blog-ssh3ll.medium.comhttps://blog-ssh3ll.medium.com/acexy-wireless-n-wifi-repeater-vulnerabilities-8bd5d14a2990