CVE-2021-47294

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

0.27% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 19.8% 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

2024-05-21 14:35Z2 YR AGO

Last updated

2026-05-23 15:19Z5 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-672Operation on a Resource after Expiration or ReleaseClass
• CWE-401Missing Release of Memory after Effective LifetimeVariant

Data version

5.2

Document digest

bb4c2fea8229b9676123823e0678461e22bf23802412fe7500631f8668054b1e

• git.kernel.orghttps://git.kernel.org/stable/c/853262355518cd1247515b74e83fabf038aa6c29
• git.kernel.orghttps://git.kernel.org/stable/c/a01634bf91f2b6c42583770eb6815fb6d1e251cf
• git.kernel.orghttps://git.kernel.org/stable/c/48866fd5c361ea417ed24b43fc2a7dc2f5b060ef
• git.kernel.orghttps://git.kernel.org/stable/c/9619cc7d97c3aa8ed3cfd2b8678b74fb6d6c7950
• git.kernel.orghttps://git.kernel.org/stable/c/25df44e90ff5959b5c24ad361b648504a7e39ef3
• git.kernel.orghttps://git.kernel.org/stable/c/6811744bd0efb9e472cb15d066cdb460beb8cb8a
• git.kernel.orghttps://git.kernel.org/stable/c/bc1660206c3723c37ed4d622ad81781f1e987250
• git.kernel.orghttps://git.kernel.org/stable/c/517a16b1a88bdb6b530f48d5d153478b2552d9a8