CVE-2021-47483

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 13.5% 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-415Double FreeVariant

Data version

5.2

Document digest

5eb53a17527a8558fbc6e3feef2afc005b8d2bba7f954da74450b48b629fb95e

• git.kernel.orghttps://git.kernel.org/stable/c/e72dce9afbdbfa70d9b44f5908a50ff6c4858999
• git.kernel.orghttps://git.kernel.org/stable/c/fc081477b47dfc3a6cb50a96087fc29674013fc2
• git.kernel.orghttps://git.kernel.org/stable/c/758ced2c3878ff789801e6fee808e185c5cf08d6
• git.kernel.orghttps://git.kernel.org/stable/c/3dae1a4eced3ee733d7222e69b8a55caf2d61091
• git.kernel.orghttps://git.kernel.org/stable/c/1cead23c1c0bc766dacb900a3b0269f651ad596f
• git.kernel.orghttps://git.kernel.org/stable/c/36e911a16b377bde0ad91a8c679069d0d310b1a6
• git.kernel.orghttps://git.kernel.org/stable/c/50cc1462a668dc62949a1127388bc3af785ce047
• git.kernel.orghttps://git.kernel.org/stable/c/55e6d8037805b3400096d621091dfbf713f97e83