CVE-2021-47104

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 15.1% 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 18:15Z2 YR AGO

Last updated

2026-05-23 15:19Z5 MO AGO

Reserved

2024-03-04

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

Data version

5.2

Document digest

d98b876cfd0311e0d66aa8964bb0f07ebdff506b05ddd7cc3b9ce69eae9cac61

• git.kernel.orghttps://git.kernel.org/stable/c/1ced0a3015a95c6a6db45e37250912c4c86697ab
• git.kernel.orghttps://git.kernel.org/stable/c/76b648063eb36c72dfc0a6896de8a0a7d2c7841c
• git.kernel.orghttps://git.kernel.org/stable/c/d53456492b5d02033c73dfa0f3b94c86337791ba
• git.kernel.orghttps://git.kernel.org/stable/c/0aaec9c5f60754b56f84460ea439b8c5e91f4caa
• git.kernel.orghttps://git.kernel.org/stable/c/79dcbd8176152b860028b62f81a635d987365752
• git.kernel.orghttps://git.kernel.org/stable/c/7cf6466e00a77b0a914b7b2c28a1fc7947d55e59
• git.kernel.orghttps://git.kernel.org/stable/c/aefcc25f3a0cd28a87d11d41d30419a12cd26a34
• git.kernel.orghttps://git.kernel.org/stable/c/bee90911e0138c76ee67458ac0d58b38a3190f65