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CVE Record

CVE-2021-39066: IBM Financial Transaction Manager 3.2.4 does not invalidate session any existing session identifier gives a...

IBM Financial Transaction Manager 3.2.4 does not invalidate session any existing session identifier gives an attacker the opportunity to steal authenticated sessions. IBM X-Force ID: 215040.

MediumCVSS 6.3Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

IBM Financial Transaction Manager 3.2.4 is reported to mishandle session invalidation, allowing an attacker with some access to reuse or steal authenticated sessions. This can affect confidentiality, integrity, and availability at a limited level. The issue is medium severity, but important where FTM supports payment or financial workflows.

Executive priority

Medium priority, elevated for payment-processing or externally reachable deployments. The business concern is unauthorized session reuse in a financial transaction platform. Address through normal vulnerability management timelines unless local exposure is high.

Technical view

CVE-2021-39066 describes a session fixation or session invalidation flaw in IBM Financial Transaction Manager 3.2.4. The CVSS 3.0 score is 6.3 with network attack vector, low complexity, low privileges required, and no user interaction. The provided structured affected-product data is incomplete.

Likely exposure

Exposure is most likely in environments running IBM Financial Transaction Manager 3.2.4. The bundle does not provide CPEs, deployment details, or a full affected-version range, so teams should validate against IBM’s advisory and local asset records.

Exploitation context

No CISA KEV listing is provided, and the source bundle does not cite active exploitation. The CVSS vector indicates remote network reachability and low complexity, but exploitation requires low privileges. Treat this as an access-control risk, not confirmed mass exploitation.

Researcher notes

Evidence is limited to CVE metadata and IBM/X-Force references. The description names IBM Financial Transaction Manager 3.2.4, but the structured affected section is not populated. Do not assume broader versions or specific fixes without reviewing IBM’s advisory.

Mitigation direction

  • Check IBM’s advisory for fixed versions or interim fixes.
  • Inventory IBM Financial Transaction Manager deployments and confirm versions.
  • Prioritize remediation for internet-accessible or high-trust financial environments.
  • Review session timeout, logout, and reauthentication controls.
  • Terminate active sessions after applying vendor remediation.

Validation and detection

  • Confirm whether IBM Financial Transaction Manager 3.2.4 is present.
  • Compare installed versions against IBM advisory guidance.
  • Review authentication logs for unusual session reuse patterns.
  • Validate that sessions are invalidated after logout or credential changes.
  • Document compensating controls for any delayed remediation.
Prepared
Confidence
medium
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.

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CVE-2021-39066 mapping review

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
6.3 (3.0)
Known Exploited
No
Published

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

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
6.3CVSS 3.0MediumCVSS:3.0/I:L/A:L/AC:L/UI:N/PR:L/C:L/AV:N/S:U/RL:O/E:U/RC:C2.83.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

6.3Medium
CVSS 3.0 vector shape for CVE-2021-39066Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

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
n/an/an/aListed
Weakness

CWE details

No CWE listed

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