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CVE Record

CVE-2021-20433: IBM Security Guardium 11.3 could allow a an authenticated user to obtain sensitive information that could b...

IBM Security Guardium 11.3 could allow a an authenticated user to obtain sensitive information that could be used in further attacks against the system. IBM X-Force ID: 196345.

MediumCVSS 6.5Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

IBM Security Guardium 11.3 has an information disclosure flaw. A logged-in user with low privileges could obtain sensitive information that may help later attacks. The issue is important where Guardium protects regulated database activity, but the sources do not show unauthenticated access or system takeover.

Executive priority

Prioritize remediation for Guardium 11.3 in environments handling regulated or sensitive database monitoring data. This is not a crisis-level vulnerability based on available evidence, but it can expose information that helps follow-on attacks.

Technical view

CVE-2021-20433 affects IBM Security Guardium 11.3. CVSS 3.0 score is 6.5: network exploitable, low privileges required, no user interaction, high confidentiality impact, no integrity or availability impact. IBM tracks it as X-Force ID 196345.

Likely exposure

Exposure is limited to organizations running IBM Security Guardium 11.3. Risk is higher where many users have Guardium access, accounts are weakly governed, or the appliance stores sensitive operational, database, or compliance information.

Exploitation context

The source bundle does not identify public exploitation, and the CVE is not listed as CISA KEV. The CVSS temporal vector marks exploit maturity as unproven. Treat this as a credible insider or compromised-account risk, not confirmed active exploitation.

Researcher notes

Available public detail is sparse. The vulnerability is described only as authenticated information disclosure with high confidentiality impact. No CWE, vulnerable component, request path, proof of concept, or detailed mitigation is provided in the source bundle.

Mitigation direction

  • Inventory IBM Security Guardium deployments and identify any version 11.3 systems.
  • Review IBM advisory 6488941 for the official fix or upgrade guidance.
  • Apply IBM-provided remediation during the next appropriate maintenance window.
  • Limit Guardium access to required users and enforce least-privilege roles.
  • Monitor authenticated Guardium activity for unusual access to sensitive information.

Validation and detection

  • Confirm affected systems report IBM Security Guardium version 11.3.
  • Check remediation status against IBM support advisory 6488941.
  • Review user and role assignments for excessive Guardium privileges.
  • Verify authentication controls reduce compromised-account risk.
  • Examine logs for unexpected authenticated access to sensitive Guardium data.
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-2021-20433 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
6.5 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/AC:L/I:N/AV:N/C:H/PR:L/UI:N/A:N/S:U/RL:O/RC:C/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
6.5CVSS 3.0MediumCVSS:3.0/AC:L/I:N/AV:N/C:H/PR:L/UI:N/A:N/S:U/RL:O/RC:C/E:U2.83.6Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

6.5Medium
CVSS 3.0 vector shape for CVE-2021-20433Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/AC:L/I:N/AV:N/C:H/PR:L/UI:N/A:N/S:U/RL:O/RC:C/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
IBMSecurity Guardium11.3Listed
Weakness

CWE details

No CWE listed

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