CVE-2021-47334

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

0.28% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 20.1% of scored records. A rank, not a probability.

NVD base score

7.8 (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:H/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 14:35Z2 YR AGO

Last updated

2026-05-11 13:52Z3 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-416Use After FreeVariant

Data version

5.2

Document digest

e2aee4996abd57b0b736340cd86aa85a8732e9061103a49bc080384ff30d7c28

• git.kernel.orghttps://git.kernel.org/stable/c/1512e7dc5eb08b7d92a12e2bfcd9cb8c4a1ec069
• git.kernel.orghttps://git.kernel.org/stable/c/29ba8e2ba89ee2862a26d91204dd5fe77ceee25a
• git.kernel.orghttps://git.kernel.org/stable/c/5b06ca113bf197aab2ab61288f42506e0049fbab
• git.kernel.orghttps://git.kernel.org/stable/c/481a76d4749ee3a27f902ba213fdcbb4bb39720e
• git.kernel.orghttps://git.kernel.org/stable/c/38660031e80eaa6cc9370b031c180612f414b00d
• git.kernel.orghttps://git.kernel.org/stable/c/b9c87ce3bc6331f82811a8cf8e930423c22523a3
• git.kernel.orghttps://git.kernel.org/stable/c/ef1067d2baa847d53c9988510d99fb494de4d12c
• git.kernel.orghttps://git.kernel.org/stable/c/a7268e8a227d5a4f0bd1584f556246b0224ab274
• git.kernel.orghttps://git.kernel.org/stable/c/7272b591c4cb9327c43443f67b8fbae7657dd9ae