CVE-2021-4122

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

0.31% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 24.6% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-10-14.

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

2026-10-14 10:04Z15 DAYS AGO

Reserved

2021-12-15

Assigning CNA

redhat

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-345Insufficient Verification of Data AuthenticityClass
• CWE-349Acceptance of Extraneous Untrusted Data With Trusted DataBase

Data version

5.2

Document digest

4cc620bb764ebc76f97efa2fea5e6d6fbbbdab33ce86ba7febf836d4a1ba06a6

• bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2031859x_refsource_MISC
• mirrors.edge.kernel.orghttps://mirrors.edge.kernel.org/pub/linux/utils/cryptsetup/v2.4/v2.4.3-ReleaseNotesx_refsource_MISC
• gitlab.comhttps://gitlab.com/cryptsetup/cryptsetup/-/commit/0113ac2d889c5322659ad0596d4cfc6da53e356cx_refsource_MISC
• bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2032401x_refsource_MISC
• access.redhat.comhttps://access.redhat.com/security/cve/CVE-2021-4122x_refsource_MISC
• cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-398330.html