CVE-2021-47207

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

Ranks above 13.4% 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

2024-04-10 18:56Z2 YR AGO

Last updated

2026-05-11 13:50Z3 MO AGO

Reserved

2024-03-25

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

e89a1108439a764ef900bb277dedc53cfa23d0ff8cf89477d93c6ccaa2c94699

• git.kernel.orghttps://git.kernel.org/stable/c/3e28e083dcdf03a18a083f8a47b6bb6b1604b5be
• git.kernel.orghttps://git.kernel.org/stable/c/cb09c760c201f82df83babc92a5ffea0a01807fc
• git.kernel.orghttps://git.kernel.org/stable/c/542fa721594a02d2aee0370a764d306ef48d030c
• git.kernel.orghttps://git.kernel.org/stable/c/ab4c1ebc40f699f48346f634d7b72b9c5193f315
• git.kernel.orghttps://git.kernel.org/stable/c/c6d2cefdd05c4810c416fb8d384b5c377bd977bc
• git.kernel.orghttps://git.kernel.org/stable/c/1ac6cd87d8ddd36c43620f82c4d65b058f725f0f
• git.kernel.orghttps://git.kernel.org/stable/c/16721797dcef2c7c030ffe73a07f39a65f9323c3
• git.kernel.orghttps://git.kernel.org/stable/c/a0d21bb3279476c777434c40d969ea88ca64f9aa