CVE-2021-47474

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

0.26% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 17.6% 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

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 13:55Z3 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-787Out-of-bounds WriteBase
• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass

Data version

5.2

Document digest

bb4b571ba25f49f7c3658a75201156625f236ef8974cbede50e7d60b08940a84

• git.kernel.orghttps://git.kernel.org/stable/c/e0e6a63fd97ad95fe05dfd77268a1952551e11a7
• git.kernel.orghttps://git.kernel.org/stable/c/7cfb35db607760698d299fd1cf7402dfa8f09973
• git.kernel.orghttps://git.kernel.org/stable/c/0866dcaa828c21bc2f94dac00e086078f11b5772
• git.kernel.orghttps://git.kernel.org/stable/c/063f576c43d589a4c153554b681d32b3f8317c7b
• git.kernel.orghttps://git.kernel.org/stable/c/1ae4715121a57bc6fa29fd992127b01907f2f993
• git.kernel.orghttps://git.kernel.org/stable/c/b7fd7f3387f070215e6be341e68eb5c087eeecc0
• git.kernel.orghttps://git.kernel.org/stable/c/7b0e356189327287d0eb98ec081bd6dd97068cd3
• git.kernel.orghttps://git.kernel.org/stable/c/47b4636ebdbeba2044b3db937c4d2b6a4fe3d0f2
• git.kernel.orghttps://git.kernel.org/stable/c/78cdfd62bd54af615fba9e3ca1ba35de39d3871d