CVE-2021-47041

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

0.49% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 39.8% 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

Modified. NVD last modified this record on 2026-08-04.

Red Hat severity

Moderate. 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

2024-02-28 08:13Z2 YR AGO

Last updated

2026-08-05 08:45Z1 MO AGO

Reserved

2024-02-27

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.5)

CNA CVSS vector

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

Weaknesses

• CWE-667Improper LockingClass
• CWE-833DeadlockBase

Data version

5.2

Document digest

6b1653fd9adc816e0c6a91d8eda2de8c72990151f975be50dae9befeccfdc976

• git.kernel.orghttps://git.kernel.org/stable/c/999d606a820c36ae9b9e9611360c8b3d8d4bb777
• git.kernel.orghttps://git.kernel.org/stable/c/60ade0d56b06537a28884745059b3801c78e03bc
• git.kernel.orghttps://git.kernel.org/stable/c/06beaa1a9f6e501213195e47c30416032fd2bbd5
• git.kernel.orghttps://git.kernel.org/stable/c/906c538340dde6d891df89fe7dac8eaa724e40da
• git.kernel.orghttps://git.kernel.org/stable/c/b5332a9f3f3d884a1b646ce155e664cc558c1722