CVE-2021-47475

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

Data version

5.2

Document digest

e5aea5120e094ea208586936e93f1486f83f08bc89d2639cd28e2af75bda5213

• git.kernel.orghttps://git.kernel.org/stable/c/5229159f1d052821007aff1a1beb7873eacf1a9f
• git.kernel.orghttps://git.kernel.org/stable/c/ec85bcff4ed09260243d8f39faba99e1041718ba
• git.kernel.orghttps://git.kernel.org/stable/c/40d2a7e278e2e7c0a5fd7e997e7eb63945bf93f7
• git.kernel.orghttps://git.kernel.org/stable/c/7a2021b896de1ad559d33b5c5cdd20b982242088
• git.kernel.orghttps://git.kernel.org/stable/c/199acd8c110e3ae62833c24f632b0bb1c9f012a9
• git.kernel.orghttps://git.kernel.org/stable/c/33d7a470730dfe7c9bfc8da84575cf2cedd60d00
• git.kernel.orghttps://git.kernel.org/stable/c/278484ae93297b1bb1ce755f9d3b6d95a48c7d47
• git.kernel.orghttps://git.kernel.org/stable/c/06ac746d57e6d32b062e220415c607b7e2e0fa50
• git.kernel.orghttps://git.kernel.org/stable/c/a23461c47482fc232ffc9b819539d1f837adf2b1