CVE-2021-47620

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

0.32% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 25.2% 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:H/A:N

NVD analysis status

Modified. NVD last modified this record on 2026-08-04.

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

2024-06-20 11:08Z2 YR AGO

Last updated

2026-08-05 08:48Z2 MO AGO

Reserved

2024-06-20

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 8.1)

CNA CVSS vector

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

Weaknesses

• CWE-125Out-of-bounds ReadBase

Data version

5.2

Document digest

258401e574506a03ed6d10fe6eb2ba5b5663dc8a54d0c0935dbd92e607854e70

• git.kernel.orghttps://git.kernel.org/stable/c/305e92f525450f3e1b5f5c9dc7eadb152d66a082
• git.kernel.orghttps://git.kernel.org/stable/c/7889b38a7f21ed19314f83194622b195d328465c
• git.kernel.orghttps://git.kernel.org/stable/c/5a539c08d743d9910631448da78af5e961664c0e
• git.kernel.orghttps://git.kernel.org/stable/c/8819f93cd4a443dfe547aa622b21f723757df3fb
• git.kernel.orghttps://git.kernel.org/stable/c/835d3706852537bf92eb23eb8635b8dee0c0aa67
• git.kernel.orghttps://git.kernel.org/stable/c/83d5196b65d1b29e27d7dd16a3b9b439fb1d2dba
• git.kernel.orghttps://git.kernel.org/stable/c/bcea886771c3f22a590c8c8b9139a107bd7f1e1c
• git.kernel.orghttps://git.kernel.org/stable/c/5c968affa804ba98c3c603f37ffea6fba618025e
• git.kernel.orghttps://git.kernel.org/stable/c/899663be5e75dc0174dc8bda0b5e6826edf0b29a