CVE-2021-47314

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 15.9% 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 13:52Z3 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-401Missing Release of Memory after Effective LifetimeVariant
• CWE-402Transmission of Private Resources into a New Sphere ('Resource Leak')Class

Data version

5.2

Document digest

240a26598ae85aa5ed0fcb9df0215cddf41219cc49b734d3c04dd7984039de8a

• git.kernel.orghttps://git.kernel.org/stable/c/8018476756066e97ecb886c3dc024aeb7d5792ad
• git.kernel.orghttps://git.kernel.org/stable/c/3b45b8a7d549bd92ec94b5357c2c2c1a7ed107e4
• git.kernel.orghttps://git.kernel.org/stable/c/7626ffbea708e5aba6912295c012d2b409a1769f
• git.kernel.orghttps://git.kernel.org/stable/c/ee1aa737ba0b75ab8af3444c4ae5bdba36aed6e6
• git.kernel.orghttps://git.kernel.org/stable/c/443f6ca6fd186b4fa4e6f377b6e19a91feb1a0d5
• git.kernel.orghttps://git.kernel.org/stable/c/b5789e23773f4a852fbfe244b63f675e265d3a7f
• git.kernel.orghttps://git.kernel.org/stable/c/48ee69825f7480622ed447b0249123236d3b3ad0
• git.kernel.orghttps://git.kernel.org/stable/c/a6b45b4932f7b0c36b41fb56a35ad679ece939a0
• git.kernel.orghttps://git.kernel.org/stable/c/8e0d09b1232d0538066c40ed4c13086faccbdff6