CVE-2021-3563
CVSS v3
7.4
HIGH
EPSS Score
1.7 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
A flaw was found in openstack-keystone. Only the first 72 characters of an application secret are verified allowing attackers bypass some password complexity which administrators may be counting on. The highest threat from this vulnerability is to data confidentiality and integrity.
Technical details
- Published
- 2022-08-26
Frequently asked questions
What is CVE-2021-3563?
A flaw was found in openstack-keystone. Only the first 72 characters of an application secret are verified allowing attackers bypass some password complexity which administrators may be counting on. The highest threat from this vulnerability is to data confidentiality and integrity.
Is CVE-2021-3563 actively exploited?
Active exploitation of CVE-2021-3563 has not been confirmed. Its EPSS score was 1.7% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-3563?
CVE-2021-3563 has a CVSS v3 base score of 7.4 (HIGH severity).
Is CVE-2021-3563 affecting your environment?
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