CVE-2021-47319

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

Equal to or higher than the score of 17.3% 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

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 13:52Z5 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-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

c2ff3c95388ed3b01830f8aaca0f85da67fce9f6eefe0b9722c448677dd794d6

• git.kernel.orghttps://git.kernel.org/stable/c/381bde79d11e596002edfd914e6714291826967a
• git.kernel.orghttps://git.kernel.org/stable/c/102d6bc6475ab09bab579c18704e6cf8d898e93c
• git.kernel.orghttps://git.kernel.org/stable/c/863da837964c80c72e368a4f748c30d25daa1815
• git.kernel.orghttps://git.kernel.org/stable/c/600942d2fd49b90e44857d20c774b20d16f3130f
• git.kernel.orghttps://git.kernel.org/stable/c/04c6e60b884cb5e94ff32af46867fb41d5848358
• git.kernel.orghttps://git.kernel.org/stable/c/cd24da0db9f75ca11eaf6060f0ccb90e2f3be3b0
• git.kernel.orghttps://git.kernel.org/stable/c/ca2b8ae93a6da9839dc7f9eb9199b18aa03c3dae
• git.kernel.orghttps://git.kernel.org/stable/c/29a2f4a3214aa14d61cc9737c9f886dae9dbb710
• git.kernel.orghttps://git.kernel.org/stable/c/b71ba22e7c6c6b279c66f53ee7818709774efa1f