CVE-2021-47184

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

Ranks above 16.2% 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

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

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

2024-04-10 18:56Z2 YR AGO

Last updated

2026-08-05 08:46Z1 MO AGO

Reserved

2024-03-25

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 8.8)

CNA CVSS vector

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

Weaknesses

• CWE-476NULL Pointer DereferenceBase

Data version

5.2

Document digest

1d922519e5e8b71ef006aafe91a648849e533cbd74f9246b17b1973eed5eeacb

• git.kernel.orghttps://git.kernel.org/stable/c/78f2a9e831f9610e3655a0be5e675e1aa2472089
• git.kernel.orghttps://git.kernel.org/stable/c/87c421ab4a43433cb009fea44bbbc77f46913e1d
• git.kernel.orghttps://git.kernel.org/stable/c/c30162da91327e4cdf7cd03079f096bb3654738c
• git.kernel.orghttps://git.kernel.org/stable/c/f866513ead4370402428ef724b03c3312295c178
• git.kernel.orghttps://git.kernel.org/stable/c/e91e8427a1e1633a0261e3bb0201c836ac5b3890
• git.kernel.orghttps://git.kernel.org/stable/c/37d9e304acd903a445df8208b8a13d707902dea6