CVE-2021-47305

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

0.24% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 15.0% 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

2024-05-21 14:35Z2 YR AGO

Last updated

2026-05-11 13:51Z3 MO AGO

Reserved

2024-05-21

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-617Reachable AssertionBase
• CWE-402Transmission of Private Resources into a New Sphere ('Resource Leak')Class

Data version

5.2

Document digest

cc972f7e2a09a3acb428a7a99dc2670411e2f02fe3f413855d1ddc68324a7a4a

• git.kernel.orghttps://git.kernel.org/stable/c/19f51c2529339280d2c8c6427cd3e21ddf1ac3f8
• git.kernel.orghttps://git.kernel.org/stable/c/e0355a0ad31a1d677b2a4514206de4902bd550e8
• git.kernel.orghttps://git.kernel.org/stable/c/41f45e91c92c8480242ea448d54e28c753b13902
• git.kernel.orghttps://git.kernel.org/stable/c/0d514185ae792d3a1903c8e1a83899aa996705ce
• git.kernel.orghttps://git.kernel.org/stable/c/19edcd97727aae9362444a859a24d99a8730cb27
• git.kernel.orghttps://git.kernel.org/stable/c/ffe000217c5068c5da07ccb1c0f8cce7ad767435