CVE-2019-5421

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

1.55% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 74.6% of scored records. A rank, not a probability.

NVD base score

9.8 (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: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

2019-04-03 14:21Z7 YR AGO

Last updated

2024-08-04 19:54Z2 YR AGO

Reserved

2019-01-04

Assigning CNA

hackerone

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-367Time-of-check Time-of-use (TOCTOU) Race ConditionBase
• CWE-307Improper Restriction of Excessive Authentication AttemptsBase

Data version

5.1

Document digest

2f1d6f3247a6eaf23a789b3b06cd8eb8e17de7d327add89cd013a638729f2971

• github.comhttps://github.com/plataformatec/devise/issues/4981x_refsource_MISC
• github.comhttps://github.com/plataformatec/devise/pull/4996x_refsource_MISC