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CVE Record

CVE-2021-29753: IBM Business Automation Workflow 18.

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.

MediumCVSS 5.9Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This flaw concerns IBM workflow products handling authentication credentials with an insecure method. If an affected system is reachable and conditions are met, credentials could be intercepted or retrieved. The public record rates it medium severity, but credential exposure can create broader business risk if reused or privileged accounts are involved.

Executive priority

Treat as a scheduled but visible remediation item, faster for externally reachable or credential-sensitive deployments. It is not listed as actively exploited in the provided sources, but credential handling issues can amplify risk beyond the initial product.

Technical view

CVE-2021-29753 affects IBM Business Automation Workflow 18.0 through 21.0 and IBM Business Process Manager 8.5 and 8.6. The CVSS 3.0 score is 5.9, with network attack vector, no privileges or user interaction required, high attack complexity, and high confidentiality impact only.

Likely exposure

Organizations running the listed IBM Business Automation Workflow or IBM Business Process Manager versions are the likely exposure group. Internet-facing or broadly reachable deployments carry higher concern because the CVSS vector is network-based.

Exploitation context

The provided sources do not show CISA KEV listing or confirmed active exploitation. CVSS exploit maturity is listed as unproven, and attack complexity is high, so urgency is mainly driven by credential sensitivity and system exposure.

Researcher notes

Evidence is limited to the CVE description, CVSS vector, affected product list, IBM advisory reference, and IBM X-Force entry. Do not assume affected subcomponents, exploitability details, or exact fixed builds without consulting IBM guidance.

Mitigation direction

  • Identify affected IBM BAW and BPM versions in production and non-production environments.
  • Review IBM advisory 6513703 for official fixes matching the deployed version.
  • Apply IBM-supported remediation or upgrade guidance; avoid inventing version-specific fixes.
  • Restrict network access to workflow and BPM interfaces where business permits.
  • Rotate credentials if logs or assessment suggest possible exposure before remediation.

Validation and detection

  • Confirm deployed product names and versions against the affected list.
  • Check whether IBM-recommended fixes or updates are already installed.
  • Review exposure of management consoles, APIs, and workflow endpoints.
  • Look for unusual authentication activity around affected systems.
  • Document compensating controls if remediation cannot be completed quickly.
Prepared
Confidence
medium
Sources
4

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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CVE-2021-29753 mapping review

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
5.9 (3.0)
Known Exploited
No
Published

Vector: 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

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
5.9CVSS 3.0MediumCVSS:3.0/PR:N/C:H/S:U/AV:N/UI:N/A:N/AC:H/I:N/RC:C/RL:O/E:U2.23.6Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

5.9Medium
CVSS 3.0 vector shape for CVE-2021-29753Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: 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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
IBMBusiness Process Manager8.5, 8.6Listed
IBMBusiness Automation Workflow18.0, 19.0, 20.0, 21.0Listed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.