CVE-2021-27170

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

15.95% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 96.6% of scored records. A rank, not a probability.

NVD base score

9.8 (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: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

2021-02-10 18:35Z5 YR AGO

Last updated

2024-08-03 20:40Z2 YR AGO

Reserved

2021-02-10

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-922Insecure Storage of Sensitive InformationClass

Data version

5.1

Document digest

e9695f8349ea5a63164b7bf101c6afcb253ff32c6433e5d07f7d281e87bf59e5

• pierrekim.github.iohttps://pierrekim.github.io/blog/2021-01-12-fiberhome-ont-0day-vulnerabilities.html#insecure-ipv6x_refsource_MISC