CVE-2021-47354

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.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• 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

0.74% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 54.0% 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 2026-08-11.

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

2026-08-11 02:05Z2 MO AGO

Reserved

2024-05-21

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-787Out-of-bounds WriteBase
• CWE-99Improper Control of Resource Identifiers ('Resource Injection')Class
• CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')Class

Data version

5.2

Document digest

1b4abf30153910b06ee6acacc4e89f3f8bd6a84dc95c525c4d2e5ea7e92c295c

• git.kernel.orghttps://git.kernel.org/stable/c/c32d0f0e164ffab2a56c7cf8e612584b4b740e2e
• git.kernel.orghttps://git.kernel.org/stable/c/0687411e2a8858262de2fc4a1d576016fd77292e
• git.kernel.orghttps://git.kernel.org/stable/c/a8e23e3c1ff9ec598ab1b3a941ace6045027781f
• git.kernel.orghttps://git.kernel.org/stable/c/50d7e03ad487cc45fc85164a299b945a41756ac0
• git.kernel.orghttps://git.kernel.org/stable/c/0b10ab80695d61422337ede6ff496552d8ace99d