IBM Automation Workstream Services 19.0.3, 20.0.1, 20.0.2, IBM Business Automation Workflow 18.0, 19.0, and 20.0 and IBM Business Process M…

published 2020-12-21 5y ago modified 2026-06-17 4mo ago also EUVD-2020-26041

cvss: 5.4; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.8%; EPSS 0.8% chance of exploitation in 30 days, percentile 58%
public exploits: 0; none known

IBM Automation Workstream Services 19.0.3, 20.0.1, 20.0.2, IBM Business Automation Workflow 18.0, 19.0, and 20.0 and IBM Business Process Manager 8.6 could allow an authenticated user to obtain sensitive information or cuase a denial of service due to iimproper authorization checking. IBM X-Force ID: 189445.

Patch / fix

links 1

ibm.com/support/pages/node/6359463 advisory

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Exploit prediction

0.85% chance of exploitation in the next 30 days, higher than 58% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CNA	3.0	5.4	CVSS:3.0/A:L/I:N/C:L/AC:L/PR:L/S:U/AV:N/UI:N/RC:C/E:U/RL:O
NVD	3.1	5.4	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L
CNA	3.0	5.4	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L
NVD	2.0	5.5	AV:N/AC:L/Au:S/C:P/I:N/A:P

Affected products

IBM Automation Workstream Services
IBM Business Process Manager
IBM Business Automation Workflow

Classification

Weakness

CWE-863 Incorrect Authorization

References

ibm.com /support/pages/node/6359463
patch, vendor-advisory
exchange.xforce.ibmcloud.com /vulnerabilities/189445
vdb-entry, vendor-advisory

Sources

CVE List CVE-2020-4794
NVD CVE-2020-4794

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