CVE-2021-47192

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

0.61% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 49.0% of scored records. A rank, not a probability.

NVD base score

5.3 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Analyzed. NVD last modified this record on 2026-06-17.

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

2024-04-10 18:56Z2 YR AGO

Last updated

2026-05-23 15:19Z5 MO AGO

Reserved

2024-03-25

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Medium (CVSS 5.3)

CNA CVSS vector

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

Weaknesses

• CWE-667Improper LockingClass
• CWE-833DeadlockBase

Data version

5.2

Document digest

1b7a89a8fc69c46d1a9b18bc6e2124857f149ce6e53187a7b4b266b8d2a0f1a3

• git.kernel.orghttps://git.kernel.org/stable/c/edd783162bf2385b43de6764f2d4c6e9f4f6be27
• git.kernel.orghttps://git.kernel.org/stable/c/a792e0128d232251edb5fdf42fb0f9fbb0b44a73
• git.kernel.orghttps://git.kernel.org/stable/c/bcc0e3175a976b7fa9a353960808adb0bb49ead8
• git.kernel.orghttps://git.kernel.org/stable/c/4edd8cd4e86dd3047e5294bbefcc0a08f66a430f