CVE-2020-4421

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

0.62% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 49.6% of scored records. A rank, not a probability.

NVD base score

5.4 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

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

2020-05-06 13:45Z6 YR AGO

Last updated

2024-09-17 02:10Z2 YR AGO

Reserved

2019-12-30

Assigning CNA

ibm

Record state

PUBLISHED

Severity

Medium (CVSS 5.0)

CNA CVSS vector

CVSS:3.0/A:L/I:L/AV:N/AC:H/S:U/C:L/PR:L/UI:N/RL:O/E:U/RC:C

Weaknesses

• CWE-290Authentication Bypass by SpoofingBase

Data version

5.1

Document digest

94f09fb3cf4bf2471db98a6ee360dbf6b89248f1d9390da68524181541c3a612

• www.ibm.comhttps://www.ibm.com/support/pages/node/6205926x_refsource_CONFIRM
• exchange.xforce.ibmcloud.comibm-websphere-cve20204421-spoofing (180084)https://exchange.xforce.ibmcloud.com/vulnerabilities/180084vdb-entryx_refsource_XF