CVE-2021-4218

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

0.30% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 22.9% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

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

2022-08-24 15:08Z4 YR AGO

Last updated

2024-08-03 17:16Z2 YR AGO

Reserved

2022-02-01

Assigning CNA

redhat

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-665Improper InitializationClass
• CWE-476NULL Pointer DereferenceBase

Data version

5.1

Document digest

98766369d52ad9780726e00b69f87e4db23c87c5c8569f95bda04120ae0f6844

• bugs.centos.orghttps://bugs.centos.org/view.php?id=18395x_refsource_MISC
• bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2048359x_refsource_MISC
• access.redhat.comhttps://access.redhat.com/security/cve/CVE-2021-4218x_refsource_MISC