CVE-2021-47571

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 11.8% of scored records. A rank, not a probability.

NVD base score

7.8 (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:H/I:H/A:H

NVD analysis status

Modified. 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

2024-05-24 15:12Z2 YR AGO

Last updated

2026-05-11 13:57Z5 MO AGO

Reserved

2024-05-24

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

2915beebba330359c01633b1c53bca7bb9c9504b00460a16ab24b0874481d8c8

• git.kernel.orghttps://git.kernel.org/stable/c/d43aecb694b10db9a4228ce2d38b5ae8de374443
• git.kernel.orghttps://git.kernel.org/stable/c/9186680382934b0e7529d3d70dcc0a21d087683b
• git.kernel.orghttps://git.kernel.org/stable/c/c0ef0e75a858cbd8618b473f22fbca36106dcf82
• git.kernel.orghttps://git.kernel.org/stable/c/bca19bb2dc2d89ce60c4a4a6e59609d4cf2e13ef
• git.kernel.orghttps://git.kernel.org/stable/c/2e1ec01af2c7139c6a600bbfaea1a018b35094b6
• git.kernel.orghttps://git.kernel.org/stable/c/8d0163cec7de995f9eb9c3128c83fb84f0cb1c64
• git.kernel.orghttps://git.kernel.org/stable/c/e27ee2f607fe6a9b923ef1fc65461c0613c97594
• git.kernel.orghttps://git.kernel.org/stable/c/b535917c51acc97fb0761b1edec85f1f3d02bda4