CVE-2021-47226

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

0.22% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 13.0% of scored records. A rank, not a probability.

NVD base score

7.1 (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:H/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-08-04.

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 14:19Z2 YR AGO

Last updated

2026-08-05 08:46Z1 MO AGO

Reserved

2024-04-10

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.1)

CNA CVSS vector

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

Weaknesses

• CWE-203Observable DiscrepancyBase
• CWE-402Transmission of Private Resources into a New Sphere ('Resource Leak')Class

Data version

5.2

Document digest

15845106b03902248b2924107c0ad77b3f2667cfdc11e0a11c10d77e5a0e9b4a

• git.kernel.orghttps://git.kernel.org/stable/c/a7748e021b9fb7739e3cb88449296539de0b6817
• git.kernel.orghttps://git.kernel.org/stable/c/002665dcba4bbec8c82f0aeb4bd3f44334ed2c14
• git.kernel.orghttps://git.kernel.org/stable/c/d8778e393afa421f1f117471144f8ce6deb6953a