Detections
Analytics

CVE-2020-4821

critical

Description

IBM InfoSphere Data Replication 11.4 and IBM InfoSphere Change Data Capture for z/OS 10.2.1, under certain configurations, could allow a user to bypass authentication mechanisms using an empty password string. IBM X-Force ID: 189834

References

https://www.ibm.com/support/pages/node/6472911

https://www.ibm.com/support/pages/node/6472909

https://exchange.xforce.ibmcloud.com/vulnerabilities/189834

Details

Source: Mitre, NVD

Published: 2021-07-16

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 9.8

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

Severity: Critical

EPSS

EPSS: 0.00238