CVE-2021-47204

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 ImpacttotalSuccessful exploitation gives total 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

Ranks above 13.6% 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

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 13:49Z3 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-416Use After FreeVariant

Data version

5.2

Document digest

cbb66ad5e20ff80b34cf7b3295912ae648e8f82b53339a6a827dae47fe6725a8

• git.kernel.orghttps://git.kernel.org/stable/c/d74ff10ed2d93dc9b67e99a74b36fb9a83273d8a
• git.kernel.orghttps://git.kernel.org/stable/c/1c4099dc0d6a01e76e4f7dd98e4b3e0d55d80ad9
• git.kernel.orghttps://git.kernel.org/stable/c/32d4686224744819ddcae58b666c21d2a4ef4c88
• git.kernel.orghttps://git.kernel.org/stable/c/9b5a333272a48c2f8b30add7a874e46e8b26129c