CVE-2021-4093

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

0.41% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 35.9% of scored records. A rank, not a probability.

NVD base score

8.8 (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:C/C:H/I:H/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

2022-02-18 17:50Z4 YR AGO

Last updated

2024-08-03 17:16Z2 YR AGO

Reserved

2021-12-10

Assigning CNA

redhat

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-125Out-of-bounds ReadBase
• CWE-787Out-of-bounds WriteBase

Data version

5.1

Document digest

d8367edcd6ecdb740dee0e4c2834e8af006d3441f3d152b08763b6c93d85be3b

• bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2028584x_refsource_MISC
• bugs.chromium.orghttps://bugs.chromium.org/p/project-zero/issues/detail?id=2222x_refsource_MISC