CVE-2021-47418

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

0.23% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 14.1% 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

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

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 15:04Z2 YR AGO

Last updated

2026-05-11 13:54Z5 MO AGO

Reserved

2024-05-21

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-476NULL Pointer DereferenceBase

Data version

5.2

Document digest

ed19f4e72bf1963505bcf9a4d68264c4f60c41f466aa358ec2186a35db818cc0

• git.kernel.orghttps://git.kernel.org/stable/c/0dd7ddc462b9c2d31eb5a9926a2cc63eaa3e9f52
• git.kernel.orghttps://git.kernel.org/stable/c/08d7056e8e250fd2e67dbea5be5fdecdd75bf6b4
• git.kernel.orghttps://git.kernel.org/stable/c/26af64d71b6277841285fa40e3f7164a378dfda9
• git.kernel.orghttps://git.kernel.org/stable/c/d07098f45be868a9cdce6c616563c36c64dbbd87
• git.kernel.orghttps://git.kernel.org/stable/c/c951a3be5e8803e93bb49a0aca0d30457d3c1b67
• git.kernel.orghttps://git.kernel.org/stable/c/acff2d182c0768a713cee77442caeb07668bd68f
• git.kernel.orghttps://git.kernel.org/stable/c/fb58cd7991747b5e0b110c98c922d7b0e47a1f14
• git.kernel.orghttps://git.kernel.org/stable/c/560ee196fe9e5037e5015e2cdb14b3aecb1cd7dc