CVE-2021-47206

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 13.2% 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

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

2024-04-10 18:56Z2 YR AGO

Last updated

2026-05-11 13:50Z5 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

002812d39794e542cef93b140093a1359836c980b12ffd1b70610703ad4e0728

• git.kernel.orghttps://git.kernel.org/stable/c/28e016e02118917e50a667bc72fb80098cf2b460
• git.kernel.orghttps://git.kernel.org/stable/c/2f18f97a1a787154a372c0738f1576f14b693d91
• git.kernel.orghttps://git.kernel.org/stable/c/bb6ed2e05eb6e8619b30fa854f9becd50c11723f
• git.kernel.orghttps://git.kernel.org/stable/c/951b8239fd24678b56c995c5c0456ab12e059d19
• git.kernel.orghttps://git.kernel.org/stable/c/f98986b7acb4219f95789095eced93ed69d81d35
• git.kernel.orghttps://git.kernel.org/stable/c/2474eb7fc3bfbce10f7b8ea431fcffe5dd5f5100
• git.kernel.orghttps://git.kernel.org/stable/c/065334f6640d074a1caec2f8b0091467a22f9483
• git.kernel.orghttps://git.kernel.org/stable/c/9eff2b2e59fda25051ab36cd1cb5014661df657b