CVE-2021-47375

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

0.25% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 16.7% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Analyzed. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. 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 15:03Z2 YR AGO

Last updated

2026-05-11 13:53Z5 MO AGO

Reserved

2024-05-21

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Medium (CVSS 6.2)

CNA CVSS vector

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

Weaknesses

• CWE-416Use After FreeVariant

Data version

5.2

Document digest

567b47a19490899a177b94647b34a1df47da7b1a3ac620a57080197f9c90f456

• git.kernel.orghttps://git.kernel.org/stable/c/488da313edf3abea7f7733efe011c96b23740ab5
• git.kernel.orghttps://git.kernel.org/stable/c/dacfd5e4d1142bfb3809aab3634a375f6f373269
• git.kernel.orghttps://git.kernel.org/stable/c/d56171d9360c0170c5c5f8f7e2362a2e999eca40
• git.kernel.orghttps://git.kernel.org/stable/c/677e362ba807f3aafe6f405c07e0b37244da5222
• git.kernel.orghttps://git.kernel.org/stable/c/ebb8d26d93c3ec3c7576c52a8373a2309423c069
• git.kernel.orghttps://git.kernel.org/stable/c/3815fe7371d2411ce164281cef40d9fc7b323dee
• git.kernel.orghttps://git.kernel.org/stable/c/a5f8e86192612d0183047448d8bbe7918b3f1a26
• git.kernel.orghttps://git.kernel.org/stable/c/5afedf670caf30a2b5a52da96eb7eac7dee6a9c9