What is CVE-2021-3412?

CVE-2021-3412 is a high-severity vulnerability in Red Hat 3scale, classified under Improper Restriction of Excessive Authentication Attempts. CVSS score: 7.3/10. Published 2021-06-01.

How severe is CVE-2021-3412?

High severity. CVSS v3 base score is 7.3 out of 10.

Vulnerability in Red Hat 3scale

CVE-2021-3412

It was found that all versions of 3Scale developer portal lacked brute force protections. An attacker could use this gap to bypass login controls, and access privileged information, or possibly conduct further attacks.

Published 2021-06-01 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.008 (55.3th percentile), scored 2026-11-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 55.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Red Hat 3scale
Red Hat 3scale API Management — versions 2.0
3scale — versions all versions

Weakness classification (CWE)

CWE-307 — Improper Restriction of Excessive Authentication Attempts

References

bugzilla.redhat.com/show_bug.cgi (Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2021-3412?: CVE-2021-3412 is a high-severity vulnerability in Red Hat 3scale, classified under Improper Restriction of Excessive Authentication Attempts. CVSS score: 7.3/10. Published 2021-06-01.
How severe is CVE-2021-3412?: High severity. CVSS v3 base score is 7.3 out of 10.