CVE-2020-4428

Exploitation

Exploited in the wild. Listed in the CISA Known Exploited Vulnerabilities catalog on 2021-11-03. Federal remediation due 2022-05-03.

SSVC decision

• ExploitationactiveCISA reports credible evidence of active exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

61.69% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 99.1% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Analyzed. 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

2020-05-07 19:20Z6 YR AGO

Last updated

2025-11-03 21:44Z10 MO AGO

Reserved

2019-12-30

Assigning CNA

ibm

Record state

PUBLISHED

Severity

Critical (CVSS 9.1)

CNA CVSS vector

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

Weaknesses

• CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')Base

Data version

5.2

Document digest

c74626ee56ae520b7c71127422e5e3f3cfa9a5fac1fffa5bded5c1dcfe7f5b7c

• www.ibm.comhttps://www.ibm.com/support/pages/node/6206875x_refsource_CONFIRM
• exchange.xforce.ibmcloud.comibm-drm-cve20204428-command-exec (180533)https://exchange.xforce.ibmcloud.com/vulnerabilities/180533vdb-entryx_refsource_XF
• seclists.orghttp://seclists.org/fulldisclosure/2024/Nov/1
• seclists.orghttp://seclists.org/fulldisclosure/2024/Nov/0
• www.cisa.govhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-4428government-resource