CVE-2021-47434

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

Equal to or higher than the score of 14.4% 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

2024-05-22 06:19Z2 YR AGO

Last updated

2026-05-23 15:19Z5 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-822Untrusted Pointer DereferenceBase

Data version

5.2

Document digest

06b96e90d28a41d4818740bfe8ff1c6337e0232dcb8817f14e5bcec2b286a7ac

• git.kernel.orghttps://git.kernel.org/stable/c/22bcb65ea41072ab5d03c0c6290e04e0df6d09a0
• git.kernel.orghttps://git.kernel.org/stable/c/62c182b5e763e5f4062e72678e72ce3e02dd4d1b
• git.kernel.orghttps://git.kernel.org/stable/c/01c2dcb67e71c351006dd17cbba86c26b7f61eaf
• git.kernel.orghttps://git.kernel.org/stable/c/dec944bb7079b37968cf69c8a438f91f15c4cc61
• git.kernel.orghttps://git.kernel.org/stable/c/e54abefe703ab7c4e5983e889babd1447738ca42
• git.kernel.orghttps://git.kernel.org/stable/c/ff0e50d3564f33b7f4b35cadeabd951d66cfc570