CVE-2021-47315

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 16.4% 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-617Reachable AssertionBase
• CWE-402Transmission of Private Resources into a New Sphere ('Resource Leak')Class

Data version

5.2

Document digest

961a97fc0fe5282f855e55b9c5f66345ceb30cc683db10aa8be0523aac94c8a8

• git.kernel.orghttps://git.kernel.org/stable/c/d0d04b95e8ed0223844a1d58497c686fe2e4a955
• git.kernel.orghttps://git.kernel.org/stable/c/6b3b002de90738e3c85853a682ce7e0fa078d42b
• git.kernel.orghttps://git.kernel.org/stable/c/94bc2fe46102d1e060fc749c0c19511e76c9995f
• git.kernel.orghttps://git.kernel.org/stable/c/d9213d4f372d30b5bc4d921795d6bed0c0e3eebf
• git.kernel.orghttps://git.kernel.org/stable/c/8d071d270afba468708faca5f7b6d9e656f75e27
• git.kernel.orghttps://git.kernel.org/stable/c/83af5816308b490b05fc8fa27fc1bdc769df200a
• git.kernel.orghttps://git.kernel.org/stable/c/28f71fd81ebd3b386bf5c7c5539664156f7d72c1
• git.kernel.orghttps://git.kernel.org/stable/c/3b132ab67fc7a358fff35e808fa65d4bea452521
• git.kernel.orghttps://git.kernel.org/stable/c/b7a2bcb4a3731d68f938207f75ed3e1d41774510
• git.kernel.orghttps://git.kernel.org/stable/c/bd051b3e184fa56eeb6276ee913ba4d48069024b