CVE-2021-47647

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

0.25% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 16.2% 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

No Red Hat rating. Red Hat rates the CVEs that affect its products.

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

2025-02-26 01:54Z1 YR AGO

Last updated

2026-05-11 13:58Z3 MO AGO

Reserved

2025-02-26

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-476NULL Pointer DereferenceBase

Data version

5.2

Document digest

c3f045279aa2a0512b4cfe3b4e232a091e2280433baadcfcd36f183d19c816f8

• git.kernel.orghttps://git.kernel.org/stable/c/8b89c9e68a01a19a1dd689a42aa65d545e931899
• git.kernel.orghttps://git.kernel.org/stable/c/41e360fa73a4c2f5b78f5ded78a5375b08c206a5
• git.kernel.orghttps://git.kernel.org/stable/c/d02b3d4a8c525068bc5cfb4341e0023d8eb82ace
• git.kernel.orghttps://git.kernel.org/stable/c/5a5576ad405c3c89fc9afb245c4dcc3e412b0aa9
• git.kernel.orghttps://git.kernel.org/stable/c/bf8f5182b8f59309809b41c1d1730ed9ca6134b1