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CVE-2021-29766: IBM i2 Analyst's Notebook Premium (IBM i2 Analyze 4.3.0, 4.3.1, and 4.3.2) could allow a remote attacker to...

IBM i2 Analyst's Notebook Premium (IBM i2 Analyze 4.3.0, 4.3.1, and 4.3.2) could allow a remote attacker to obtain sensitive information when a detailed technical error message is returned in the browser. This information could be used in further attacks against the system. IBM X-Force ID: 202680.

MediumCVSS 5.3Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

IBM i2 Analyze versions 4.3.0, 4.3.1, and 4.3.2 may expose sensitive details through verbose technical browser errors. This is not described as a system takeover issue, but leaked implementation details can help attackers plan later attacks.

Executive priority

Treat as a moderate-priority remediation item. The direct impact is information leakage, but affected investigative platforms can contain sensitive operational context, and leaked technical details may support follow-on attacks.

Technical view

CVE-2021-29766 is an information disclosure flaw in IBM i2 Analyst's Notebook Premium using IBM i2 Analyze 4.3.0 through 4.3.2. The CVSS 3.0 score is 5.3: network-accessible, low complexity, no privileges, no user interaction, low confidentiality impact, no integrity or availability impact.

Likely exposure

Exposure is limited to organizations running IBM i2 Analyze 4.3.0, 4.3.1, or 4.3.2, especially where browser-facing services are reachable by untrusted networks or users.

Exploitation context

The bundle does not show CISA KEV listing or cited evidence of active exploitation. CVSS indicates remote network reachability without authentication or user interaction, but exploit maturity is listed as unproven.

Researcher notes

No CWE is listed in the bundle. IBM X-Force ID is 202680. The source data identifies affected versions and impact, but does not provide detailed root cause, exploit method, or exact fixed version in the supplied text.

Mitigation direction

  • Identify any IBM i2 Analyze 4.3.0, 4.3.1, or 4.3.2 deployments.
  • Review IBM advisory 6474881 for vendor-recommended remediation.
  • Apply IBM-provided fixes or configuration guidance where applicable.
  • Restrict browser access to trusted networks and authorized users.
  • Ensure production errors do not expose detailed technical messages.

Validation and detection

  • Confirm deployed IBM i2 Analyze versions from asset records or administration data.
  • Check whether affected web interfaces are reachable from untrusted networks.
  • Review browser-facing error handling for sensitive technical details.
  • Confirm IBM guidance has been applied to affected installations.
  • Monitor logs for repeated error-triggering activity against i2 Analyze endpoints.
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.

ATT&CK lookup starting points

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CVE-2021-29766 mapping review

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
5.3 (3.0)
Known Exploited
No
Published

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

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
5.3CVSS 3.0MediumCVSS:3.0/AV:N/UI:N/AC:L/C:L/I:N/A:N/S:U/PR:N/RC:C/E:U/RL:O3.91.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

5.3Medium
CVSS 3.0 vector shape for CVE-2021-29766Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

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
IBMi2 Analyze4.3.0, 4.3.1, 4.3.2Listed
Weakness

CWE details

No CWE listed

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