CVE-2021-47216

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

0.23% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 13.4% 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

2024-04-10 19:01Z2 YR AGO

Last updated

2026-05-11 13:50Z3 MO AGO

Reserved

2024-04-10

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-402Transmission of Private Resources into a New Sphere ('Resource Leak')Class

Data version

5.2

Document digest

c9b9eeda96569b456f925aa2606148995752795b1fff432706498ae5a8b25a58

• git.kernel.orghttps://git.kernel.org/stable/c/06d7d12efb5c62db9dea15141ae2b322c2719515
• git.kernel.orghttps://git.kernel.org/stable/c/ad19f7046c24f95c674fbea21870479b2b9f5bab
• git.kernel.orghttps://git.kernel.org/stable/c/5612287991debe310c914600599bd59511ababfb
• git.kernel.orghttps://git.kernel.org/stable/c/f5a0ba4a9b5e70e7b2f767636d26523f9d1ac59d
• git.kernel.orghttps://git.kernel.org/stable/c/cc248790bfdcf879e3094fa248c85bf92cdf9dae
• git.kernel.orghttps://git.kernel.org/stable/c/055eced3edf5b675d12189081303f6285ef26511
• git.kernel.orghttps://git.kernel.org/stable/c/27490ae6a85a70242d80615ca74d0362a820d6a7
• git.kernel.orghttps://git.kernel.org/stable/c/d4996c6eac4c81b8872043e9391563f67f13e406