CVE-2021-47480

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

0.21% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 11.1% 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

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

2024-05-22 08:19Z2 YR AGO

Last updated

2026-05-11 13:55Z5 MO AGO

Reserved

2024-05-22

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-416Use After FreeVariant

Data version

5.2

Document digest

19251cfe3dcda02feb621fcd82d2c8f9af3239bad1b8c8e0ff96d6f815b03453

• git.kernel.orghttps://git.kernel.org/stable/c/1105573d964f7b78734348466b01f5f6ba8a1813
• git.kernel.orghttps://git.kernel.org/stable/c/8e4814a461787e15a31d322d9efbe0d4f6822428
• git.kernel.orghttps://git.kernel.org/stable/c/61a0faa89f21861d1f8d059123b5c285a5d9ffee
• git.kernel.orghttps://git.kernel.org/stable/c/c2df161f69fb1c67f63adbd193368b47f511edc0
• git.kernel.orghttps://git.kernel.org/stable/c/1ce287eff9f23181d5644db787f472463a61f68b
• git.kernel.orghttps://git.kernel.org/stable/c/7b57c38d12aed1b5d92f74748bed25e0d041729f
• git.kernel.orghttps://git.kernel.org/stable/c/f30822c0b4c35ec86187ab055263943dc71a6836
• git.kernel.orghttps://git.kernel.org/stable/c/f2b85040acec9a928b4eb1b57a989324e8e38d3f