CVE-2021-47165

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

Equal to or higher than the score of 13.1% 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

2024-03-25 09:16Z2 YR AGO

Last updated

2026-05-23 15:19Z5 MO AGO

Reserved

2024-03-25

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

3043f81ef67ccc75aeb61639a34861e89f7c8d74c458e020126fca2c165c5736

• git.kernel.orghttps://git.kernel.org/stable/c/b4298d33c1fcce511ffe84d8d3de07e220300f9b
• git.kernel.orghttps://git.kernel.org/stable/c/e256a0eb43e17209e347409a80805b1659398d68
• git.kernel.orghttps://git.kernel.org/stable/c/4ce2bf20b4a6e307e114847d60b2bf40a6a1fac0
• git.kernel.orghttps://git.kernel.org/stable/c/d66083c0d6f5125a4d982aa177dd71ab4cd3d212
• git.kernel.orghttps://git.kernel.org/stable/c/b4b91033a0b11fe9ade58156cd9168f89f4a8c1a
• git.kernel.orghttps://git.kernel.org/stable/c/7cfc4ea78fc103ea51ecbacd9236abb5b1c490d2