CVE-2021-47603

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

0.18% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 7.8% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

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 14:54Z2 YR AGO

Last updated

2026-05-23 15:20Z3 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-667Improper LockingClass
• CWE-833DeadlockBase

Data version

5.2

Document digest

dd3ca38076e6ccc44c08df5d927884c1b83ceb4140b3e76657e4f054fa67d846

• git.kernel.orghttps://git.kernel.org/stable/c/75fdb751f84727d614deea0571a1490c3225d83a
• git.kernel.orghttps://git.kernel.org/stable/c/8389f50ceb854cb437fefb9330d5024ed3c7c1f5
• git.kernel.orghttps://git.kernel.org/stable/c/0d3277eabd542fb662be23696e5ec9f390d688e1
• git.kernel.orghttps://git.kernel.org/stable/c/4cc6badff97f74d0fce65f9784b5df3b64e4250b
• git.kernel.orghttps://git.kernel.org/stable/c/a5f4d17daf2e6cd7c1d9676b476147f6b4ac53f2
• git.kernel.orghttps://git.kernel.org/stable/c/f4b3ee3c85551d2d343a3ba159304066523f730f