IBM Business Automation Workflow 18.

published 2021-11-05 5y ago modified 2026-06-17 4mo ago also EUVD-2021-16227

cvss: 5.9; 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 56%
public exploits: 0; none known

IBM Business Automation Workflow 18. 19, 20, 21, and IBM Business Process Manager 8.5 and d8.6 transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval.

Is CVE-2021-29753 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Exploit prediction

0.80% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CNA	3.0	5.9	CVSS:3.0/PR:N/C:H/S:U/AV:N/UI:N/A:N/AC:H/I:N/RC:C/RL:O/E:U
NVD	3.1	5.9	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
CNA	3.0	5.9	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD	2.0	4.3	AV:N/AC:M/Au:N/C:P/I:N/A:N

Affected products

IBM Business Process Manager
IBM Business Automation Workflow

Classification

Weakness

CWE-319 Cleartext Transmission of Sensitive Information

References

ibm.com /support/pages/node/6513703
vendor-advisory
exchange.xforce.ibmcloud.com /vulnerabilities/201919
vdb-entry, vendor-advisory

Sources

CVE List CVE-2021-29753
NVD CVE-2021-29753

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.