CVE-2021-47435

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 14.7% of scored records. A rank, not a probability.

NVD base score

4.7 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:L/AC:H/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

Moderate. 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

2026-05-11 13:54Z5 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-476NULL Pointer DereferenceBase

Data version

5.2

Document digest

94cb484d305215e4fd0ff5fd449cab6812d200023065757adfab2a438e51d210

• git.kernel.orghttps://git.kernel.org/stable/c/9fb7cd5c7fef0f1c982e3cd27745a0dec260eaed
• git.kernel.orghttps://git.kernel.org/stable/c/d35aef9c60d310eff3eaddacce301efe877e2b7c
• git.kernel.orghttps://git.kernel.org/stable/c/9e07272cca2ed76f7f6073f4444b1143828c8d87
• git.kernel.orghttps://git.kernel.org/stable/c/ad1393b92e5059218d055bfec8f4946d85ad04c4
• git.kernel.orghttps://git.kernel.org/stable/c/d29c78d3f9c5d2604548c1065bf1ec212728ea61
• git.kernel.orghttps://git.kernel.org/stable/c/6e506f07c5b561d673dd0b0d8f7f420cc48024fb
• git.kernel.orghttps://git.kernel.org/stable/c/d208b89401e073de986dc891037c5a668f5d5d95