CVE-2021-31407

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

2.38% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 83.4% of scored records. A rank, not a probability.

NVD base score

7.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

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

2021-04-23 16:05Z5 YR AGO

Last updated

2024-09-16 17:17Z2 YR AGO

Reserved

2021-04-15

Assigning CNA

Vaadin

Record state

PUBLISHED

Severity

High (CVSS 8.6)

CNA CVSS vector

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

Weaknesses

• CWE-402Transmission of Private Resources into a New Sphere ('Resource Leak')Class
• CWE-668Exposure of Resource to Wrong SphereClass

Data version

5.1

Document digest

f177ce1443f6a46746de66085aaa4e465c4d67d65726cde7bf44dcc1ef1c63b5

• vaadin.comhttps://vaadin.com/security/cve-2021-31407x_refsource_MISC
• github.comhttps://github.com/vaadin/osgi/issues/50x_refsource_MISC
• github.comhttps://github.com/vaadin/flow/pull/10229x_refsource_MISC
• github.comhttps://github.com/vaadin/flow/pull/10269x_refsource_MISC