CVE-2021-47344

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

Data version

5.2

Document digest

d1d0d5624a6ae6f55fb8c9c4291dba17d3f128000626f5a460383a639c318b43

• git.kernel.orghttps://git.kernel.org/stable/c/c57b2bd3247925e253729dce283d6bf6abc9339d
• git.kernel.orghttps://git.kernel.org/stable/c/bbc80a972a3c5d7eba3f6c9c07af8fea42f5c513
• git.kernel.orghttps://git.kernel.org/stable/c/b0633051a6cb24186ff04ce1af99c7de18c1987e
• git.kernel.orghttps://git.kernel.org/stable/c/021c294dff030f3ba38eb81e400ba123db32ecbc
• git.kernel.orghttps://git.kernel.org/stable/c/0edd6759167295ea9969e89283b81017b4c688aa
• git.kernel.orghttps://git.kernel.org/stable/c/c57bfd8000d7677bf435873b440eec0c47f73a08
• git.kernel.orghttps://git.kernel.org/stable/c/5f3f81f1c96b501d180021c23c25e9f48eaab235
• git.kernel.orghttps://git.kernel.org/stable/c/d69b39d89f362cfeeb54a68690768d0d257b2c8f
• git.kernel.orghttps://git.kernel.org/stable/c/0a045eac8d0427b64577a24d74bb8347c905ac65