CVE-2021-47100

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

0.24% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 15.0% 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

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

2024-03-04 18:10Z2 YR AGO

Last updated

2026-05-11 13:48Z5 MO AGO

Reserved

2024-02-29

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-416Use After FreeVariant

Data version

5.2

Document digest

a1dbe60a4d7e6b35362f796cdcdc8879d2d47a43e4643dcf3f462d6bdeb5d4af

• git.kernel.orghttps://git.kernel.org/stable/c/925229d552724e1bba1abf01d3a0b1318539b012
• git.kernel.orghttps://git.kernel.org/stable/c/992649b8b16843d27eb39ceea5f9cf85ffb50a18
• git.kernel.orghttps://git.kernel.org/stable/c/6809da5185141e61401da5b01896b79a4deed1ad
• git.kernel.orghttps://git.kernel.org/stable/c/6b3f7e4b10f343f05b5fb513b07a9168fbf1172e
• git.kernel.orghttps://git.kernel.org/stable/c/ffb76a86f8096a8206be03b14adda6092e18e275