CVE-2021-47064

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

0.76% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 55.0% of scored records. A rank, not a probability.

NVD base score

5.3 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

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

2024-02-29 22:37Z2 YR AGO

Last updated

2026-05-11 13:47Z5 MO AGO

Reserved

2024-02-29

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Medium (CVSS 5.3)

CNA CVSS vector

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

Weaknesses

• CWE-401Missing Release of Memory after Effective LifetimeVariant
• CWE-402Transmission of Private Resources into a New Sphere ('Resource Leak')Class

Data version

5.2

Document digest

1980c13ed6102854ad37b1453d48e540cc8f4beda11eca6e5038cca7d28637b1

• git.kernel.orghttps://git.kernel.org/stable/c/9fa26701cd1fc4d932d431971efc5746325bdfce
• git.kernel.orghttps://git.kernel.org/stable/c/9b68ce2856dadc0e1cb6fd21fbeb850da49efd08
• git.kernel.orghttps://git.kernel.org/stable/c/91b9548d413fda488ea853cd1b9f59b572db3a0c
• git.kernel.orghttps://git.kernel.org/stable/c/b4403cee6400c5f679e9c4a82b91d61aa961eccf