CVE-2021-47401

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.25% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 16.5% 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:H/I:N/A:N

NVD analysis status

Modified. NVD last modified this record on 2026-08-04.

Red Hat severity

Low. 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

2024-05-21 15:03Z2 YR AGO

Last updated

2026-08-05 08:47Z2 MO AGO

Reserved

2024-05-21

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.1)

CNA CVSS vector

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

Weaknesses

• CWE-668Exposure of Resource to Wrong SphereClass
• CWE-402Transmission of Private Resources into a New Sphere ('Resource Leak')Class

Data version

5.2

Document digest

de33bf7e954fa91a562fc4e0626eb9d443a219ddf9d411bfcd0470446e93039b

• git.kernel.orghttps://git.kernel.org/stable/c/acb96e782bad427ca4bb1bd94af660acd1462380
• git.kernel.orghttps://git.kernel.org/stable/c/741ea2670e021350e54f491106bdaa22dc50e6a0
• git.kernel.orghttps://git.kernel.org/stable/c/2725925982dc96a78069cd118ea3d66759bfdad7
• git.kernel.orghttps://git.kernel.org/stable/c/829f13d6079cf7a2465522f39acb43033e9b320d
• git.kernel.orghttps://git.kernel.org/stable/c/8657158a3b68c85234e6da3d8eae33d6183588b7
• git.kernel.orghttps://git.kernel.org/stable/c/5f6a309a699675680df15d9b6d389114515b4426
• git.kernel.orghttps://git.kernel.org/stable/c/0a9c36a2e06a249acbed64e8e0b84637c2ad7575
• git.kernel.orghttps://git.kernel.org/stable/c/a89936cce87d60766a75732a9e7e25c51164f47c