CVE-2021-47589

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

0.25% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 17.4% 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 2026-06-17.

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

2024-06-19 14:53Z2 YR AGO

Last updated

2026-05-11 13:57Z5 MO AGO

Reserved

2024-05-24

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-415Double FreeVariant

Data version

5.2

Document digest

adbef69ccf716650dc0bdadd83e028d8be24f96531fbfd32684beb7e4c73e514

• git.kernel.orghttps://git.kernel.org/stable/c/ffe1695b678729edec04037e691007900a2b2beb
• git.kernel.orghttps://git.kernel.org/stable/c/79d9b092035dcdbe636b70433149df9cc6db1e49
• git.kernel.orghttps://git.kernel.org/stable/c/8d0c927a9fb2b4065230936b77b54f857a3754fc
• git.kernel.orghttps://git.kernel.org/stable/c/cc9b655bb84f1be283293dfea94dff9a31b106ac
• git.kernel.orghttps://git.kernel.org/stable/c/8addba6cab94ce01686ea2e80ed1530f9dc33a9a
• git.kernel.orghttps://git.kernel.org/stable/c/74a16e062b23332d8db017ff4a41e16279c44411
• git.kernel.orghttps://git.kernel.org/stable/c/944b8be08131f5faf2cd2440aa1c24a39a163a54
• git.kernel.orghttps://git.kernel.org/stable/c/b6d335a60dc624c0d279333b22c737faa765b028