CVE-2021-47057

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

Ranks above 12.9% 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:N/I:N/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

2024-02-29 22:37Z2 YR AGO

Last updated

2026-05-11 13:47Z3 MO AGO

Reserved

2024-02-29

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Medium (CVSS 5.5)

CNA CVSS vector

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

Weaknesses

• CWE-770Allocation of Resources Without Limits or ThrottlingBase
• CWE-402Transmission of Private Resources into a New Sphere ('Resource Leak')Class

Data version

5.2

Document digest

7017557350ce4b0eada86ed56f444e5e43289440693308e595e06395be903c4b

• git.kernel.orghttps://git.kernel.org/stable/c/617ec35ed51f731a593ae7274228ef2cfc9cb781
• git.kernel.orghttps://git.kernel.org/stable/c/e1f2d739849c3239df1ea3f97d40bade4b808410
• git.kernel.orghttps://git.kernel.org/stable/c/6516cb852d704ff8d615de1f93cd443a99736c3d
• git.kernel.orghttps://git.kernel.org/stable/c/98b5ef3e97b16eaeeedb936f8bda3594ff84a70e