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CVE Record

CVE-2021-29770: IBM i2 Analyst's Notebook Premium (IBM i2 Analyze 4.3.0, 4.3.1, and 4.3.2) could allow an authenticated use...

IBM i2 Analyst's Notebook Premium (IBM i2 Analyze 4.3.0, 4.3.1, and 4.3.2) could allow an authenticated user to perform unauthorized actions due to hazardous input validation. IBM X-Force ID: 202771.

MediumCVSS 4.1Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2021-29770 affects IBM i2 Analyst's Notebook Premium deployments using IBM i2 Analyze 4.3.0, 4.3.1, or 4.3.2. A logged-in, low-privileged user could perform unauthorized actions because input validation is hazardous. The disclosed impact is limited to integrity, with no stated confidentiality or availability impact.

Executive priority

Schedule remediation in the normal vulnerability cycle unless the product supports sensitive investigations or many low-trust users. Prioritize faster where unauthorized data changes could affect case integrity, compliance evidence, or operational decisions.

Technical view

The CVSS 3.0 score is 4.1. The vector indicates network reachability, low attack complexity, low privileges required, user interaction required, changed scope, and low integrity impact. IBM tracks it as X-Force ID 202771. No CWE is provided in the source bundle.

Likely exposure

Exposure is most likely in organizations running IBM i2 Analyze 4.3.0, 4.3.1, or 4.3.2 as part of i2 Analyst's Notebook Premium. Systems limited to later or unrelated IBM i2 versions are not identified as affected in the provided sources.

Exploitation context

The provided bundle does not show CISA KEV listing or active exploitation. The CVSS vector marks exploit maturity as unproven. Treat this as an authenticated misuse risk rather than an internet-scale unauthenticated compromise based on available evidence.

Researcher notes

The key gap is specificity: the bundle names hazardous input validation and unauthorized actions but does not describe the exact feature, request path, or fix version. Avoid assuming exploitability beyond authenticated, user-interaction-required, low-integrity impact.

Mitigation direction

  • Identify any IBM i2 Analyze 4.3.0, 4.3.1, or 4.3.2 deployments.
  • Apply IBM's official remediation or upgrade guidance for CVE-2021-29770.
  • Restrict access to trusted authenticated users until remediation is complete.
  • Review role permissions for users who can access affected i2 Analyze services.
  • Monitor audit logs for unexpected authenticated actions.

Validation and detection

  • Confirm deployed IBM i2 Analyze versions against the affected version list.
  • Check IBM support guidance for the remediation status of each instance.
  • Verify access controls limit low-privileged user reach to required functions only.
  • Review recent logs for unauthorized or unusual integrity-changing actions.
  • Document remediation evidence for each affected environment.
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-2021-29770 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
4.1 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/S:C/PR:L/AV:N/UI:R/C:N/AC:L/I:L/A:N/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
4.1CVSS 3.0MediumCVSS:3.0/S:C/PR:L/AV:N/UI:R/C:N/AC:L/I:L/A:N/RL:O/E:U/RC:C2.31.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

4.1Medium
CVSS 3.0 vector shape for CVE-2021-29770Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/S:C/PR:L/AV:N/UI:R/C:N/AC:L/I:L/A:N/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
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.