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CVE Record

CVE-2021-39087: IBM Sterling B2B Integrator Standard Edition 6.0.0.0 through 6.0.3.5, 6.1.0.0 through 6.1.0.4, and 6.1.1.0...

IBM Sterling B2B Integrator Standard Edition 6.0.0.0 through 6.0.3.5, 6.1.0.0 through 6.1.0.4, and 6.1.1.0 through 6.1.1.1 could allow an authenticated user to obtain sensitive information due to improper permission controls. IBM X-Force ID: 216109.

MediumCVSS 4.3Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This vulnerability affects IBM Sterling B2B Integrator Standard Edition and may let a logged-in user see sensitive information they should not access. It is not described as unauthenticated or data-changing, but it matters where Sterling handles partner, transaction, or operational data.

Executive priority

Treat as a targeted confidentiality risk, not an emergency internet-wide threat. Remediate during the next security maintenance window, sooner for environments handling regulated partner or transaction data.

Technical view

CVE-2021-39087 is an improper permission control issue in IBM Sterling B2B Integrator Standard Edition. The CVSS 3.0 vector indicates network reachability, low attack complexity, low privileges required, no user interaction, and limited confidentiality impact only.

Likely exposure

Exposure is limited to organizations running the listed IBM Sterling B2B Integrator Standard Edition version ranges, especially where low-privileged authenticated users can access the application over a network.

Exploitation context

The provided sources do not show CISA KEV listing or active exploitation. Exploitation requires authenticated access, and the documented impact is sensitive information disclosure rather than integrity or availability compromise.

Researcher notes

The bundle does not include CWE mapping, exact fixed versions, or exploit details. The core assessment rests on IBM’s advisory, X-Force ID 216109, affected version ranges, CVSS vector, and non-KEV status.

Mitigation direction

  • Check IBM advisory for the official fixed level or interim fix.
  • Prioritize upgrades for affected Sterling B2B Integrator Standard Edition deployments.
  • Review user roles and remove unnecessary low-privileged application access.
  • Monitor IBM X-Force ID 216109 for vendor guidance changes.

Validation and detection

  • Inventory Sterling B2B Integrator Standard Edition versions in production and non-production.
  • Compare versions against 6.0.0.0-6.0.3.5, 6.1.0.0-6.1.0.4, and 6.1.1.0-6.1.1.1.
  • Confirm remediation status against IBM support guidance, not assumptions.
  • Review access logs for unusual authenticated access to sensitive information areas.
Prepared
Confidence
high
Sources
4

Public sources used

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-2021-39087 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
4.3 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/AC:L/UI:N/A:N/I:N/PR:L/S:U/C:L/AV: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
4.3CVSS 3.0MediumCVSS:3.0/AC:L/UI:N/A:N/I:N/PR:L/S:U/C:L/AV:N/RC:C/RL:O/E:U2.81.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

4.3Medium
CVSS 3.0 vector shape for CVE-2021-39087Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/AC:L/UI:N/A:N/I:N/PR:L/S:U/C:L/AV: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
IBMSterling B2B Integrator6.0.0.0, 6.1.0.0, 6.1.1.0, 6.0.3.5, 6.1.0.4, 6.1.1.1Listed
Weakness

CWE details

No CWE listed

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