CVE-2021-47617

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

Ranks above 11.5% 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

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

2024-06-20 10:57Z2 YR AGO

Last updated

2026-05-23 15:20Z3 MO AGO

Reserved

2024-06-19

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-835Loop with Unreachable Exit Condition ('Infinite Loop')Base

Data version

5.2

Document digest

5319b51122379ddc7ebd7877d2e8d41ea84173c64916c083aee492b6a75c2afa

• git.kernel.orghttps://git.kernel.org/stable/c/ff27f7d0333cff89ec85c419f431aca1b38fb16a
• git.kernel.orghttps://git.kernel.org/stable/c/464da38ba827f670deac6500a1de9a4f0f44c41d
• git.kernel.orghttps://git.kernel.org/stable/c/3b4c966fb156ff3e70b2526d964952ff7c1574d9
• git.kernel.orghttps://git.kernel.org/stable/c/1db58c6584a72102e98af2e600ea184ddaf2b8af
• git.kernel.orghttps://git.kernel.org/stable/c/6d6f1f0dac3e3441ecdb1103d4efb11b9ed24dd5
• git.kernel.orghttps://git.kernel.org/stable/c/23584c1ed3e15a6f4bfab8dc5a88d94ab929ee12