CVE-2021-47597

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

Ranks above 16.9% 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:H/I:N/A:N

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 13:57Z3 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-908Use of Uninitialized ResourceBase
• CWE-402Transmission of Private Resources into a New Sphere ('Resource Leak')Class

Data version

5.2

Document digest

123f5c1bfd9ec42b491eb06cc5d4cc0e9f03981995ab5fae1c9f9525dc0a0c9f

• git.kernel.orghttps://git.kernel.org/stable/c/7b5596e531253ce84213d9daa7120b71c9d83198
• git.kernel.orghttps://git.kernel.org/stable/c/3a4f6dba1eb98101abc012ef968a8b10dac1ce50
• git.kernel.orghttps://git.kernel.org/stable/c/e5d28205bf1de7082d904ed277ceb2db2879e302
• git.kernel.orghttps://git.kernel.org/stable/c/71ddeac8cd1d217744a0e060ff520e147c9328d1