CVE-2021-47086

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

0.23% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 13.4% 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

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

2024-03-04 18:06Z2 YR AGO

Last updated

2026-05-11 13:47Z3 MO AGO

Reserved

2024-02-29

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-20Improper Input ValidationClass

Data version

5.2

Document digest

9367a5856086d90fbaca9fef13c3092a5e624927ecbda85debc514f46215b4ae

• git.kernel.orghttps://git.kernel.org/stable/c/0bbdd62ce9d44f3a22059b3d20a0df977d9f6d59
• git.kernel.orghttps://git.kernel.org/stable/c/b10c7d745615a092a50c2e03ce70446d2bec2aca
• git.kernel.orghttps://git.kernel.org/stable/c/311601f114859d586d5ef8833d60d3aa23282161
• git.kernel.orghttps://git.kernel.org/stable/c/982b6ba1ce626ef87e5c29f26f2401897554f235
• git.kernel.orghttps://git.kernel.org/stable/c/48c76fc53582e7f13c1e0b11c916e503256c4d0b
• git.kernel.orghttps://git.kernel.org/stable/c/52ad5da8e316fa11e3a50b3f089aa63e4089bf52
• git.kernel.orghttps://git.kernel.org/stable/c/53ccdc73eedaf0e922c45b569b797d2796fbaafa
• git.kernel.orghttps://git.kernel.org/stable/c/75a2f31520095600f650597c0ac41f48b5ba0068