CVE-2021-47419

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

0.23% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 14.1% 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

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

2024-05-21 15:04Z2 YR AGO

Last updated

2026-08-05 08:47Z1 MO AGO

Reserved

2024-05-21

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.8)

CNA CVSS vector

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

Weaknesses

• CWE-833DeadlockBase

Data version

5.2

Document digest

1a4c8fc8819a955d4df666bde3c65aec50adff65a0e0025ae712a3cafa01c8b6

• git.kernel.orghttps://git.kernel.org/stable/c/c951c08a5996365aecbc5f1a9bddec3905e1ddfc
• git.kernel.orghttps://git.kernel.org/stable/c/3ec73ffeef54596c32aff0e73fe60971b9c8b866
• git.kernel.orghttps://git.kernel.org/stable/c/7a1c1af341041221b3acb9d7036cc2b43e0efa75
• git.kernel.orghttps://git.kernel.org/stable/c/a56d447f196fa9973c568f54c0d76d5391c3b0c0