CVE-2021-31411

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

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

EPSS percentile

Ranks above 14.1% 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

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

2021-05-05 18:15Z5 YR AGO

Last updated

2024-09-16 18:08Z1 YR AGO

Reserved

2021-04-15

Assigning CNA

Vaadin

Record state

PUBLISHED

Severity

Medium (CVSS 6.3)

CNA CVSS vector

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

Weaknesses

• CWE-379Creation of Temporary File in Directory with Insecure PermissionsBase

Data version

5.1

Document digest

4ee2d8cc9526dbaf225c77e43beccfbafe742001698e8a7c4179cbc448aafa05

• vaadin.comhttps://vaadin.com/security/cve-2021-31411x_refsource_CONFIRM
• github.comhttps://github.com/vaadin/flow/pull/10640x_refsource_CONFIRM