CVE-2021-23162

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

0.42% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 36.3% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:3.1/AV:N/AC:H/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

2021-11-18 17:59Z4 YR AGO

Last updated

2024-09-16 22:35Z2 YR AGO

Reserved

2021-01-26

Assigning CNA

Gallagher

Record state

PUBLISHED

Severity

High (CVSS 7.7)

CNA CVSS vector

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

Weaknesses

• CWE-296Improper Following of a Certificate's Chain of TrustBase
• CWE-295Improper Certificate ValidationBase

Data version

5.1

Document digest

1e42baea00343f51ddc431147a7825da48c22e668a2e72c081311e2e635494dc

• security.gallagher.comhttps://security.gallagher.com/Security-Advisories/CVE-2021-23162x_refsource_MISC