CVE-2021-47485

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 14.5% of scored records. A rank, not a probability.

NVD base score

7.8 (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:H/I:H/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-08-04.

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 08:19Z2 YR AGO

Last updated

2026-08-05 08:48Z2 MO AGO

Reserved

2024-05-22

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.8)

CNA CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses

• CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')Base

Data version

5.2

Document digest

a9724f14a13a538580f0ccf3856cc07a9cf2386977dbff69a2578eb3aa13bb10

• git.kernel.orghttps://git.kernel.org/stable/c/bda41654b6e0c125a624ca35d6d20beb8015b5d0
• git.kernel.orghttps://git.kernel.org/stable/c/3f57c3f67fd93b4da86aeffea1ca32c484d054ad
• git.kernel.orghttps://git.kernel.org/stable/c/60833707b968d5ae02a75edb7886dcd4a957cf0d
• git.kernel.orghttps://git.kernel.org/stable/c/73d2892148aa4397a885b4f4afcfc5b27a325c42
• git.kernel.orghttps://git.kernel.org/stable/c/0f8cdfff06829a0b0348b6debc29ff6a61967724
• git.kernel.orghttps://git.kernel.org/stable/c/c3e17e58f571f34c51aeb17274ed02c2ed5cf780
• git.kernel.orghttps://git.kernel.org/stable/c/0d4395477741608d123dad51def9fe50b7ebe952
• git.kernel.orghttps://git.kernel.org/stable/c/d39bf40e55e666b5905fdbd46a0dced030ce87be