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CVE Record

CVE-2021-38936: IBM QRadar SIEM 7.3, 7.4, and 7.5 could disclose highly sensitive information to a privileged user.

IBM QRadar SIEM 7.3, 7.4, and 7.5 could disclose highly sensitive information to a privileged user. IBM X-Force ID: 210893.

MediumCVSS 4.9Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

IBM QRadar SIEM can expose highly sensitive information to someone who already has elevated access. The business risk is data confidentiality, not service disruption. Because high privileges are required, urgency depends on how tightly QRadar administrator access is controlled.

Executive priority

Handle as a confidentiality-focused medium priority. Prioritize faster where QRadar holds sensitive security telemetry, broad administrator access exists, or privileged accounts are weakly governed.

Technical view

CVE-2021-38936 affects IBM QRadar SIEM 7.3, 7.4, and 7.5. The CVSS 3.0 score is 4.9: network attack vector, low complexity, high privileges required, no user interaction, high confidentiality impact, and no integrity or availability impact.

Likely exposure

Exposure is most likely in organizations running the listed QRadar SIEM versions or fix packs with privileged users who can reach the affected functionality. The provided sources do not identify affected components beyond QRadar SIEM or the exact information disclosed.

Exploitation context

The provided data does not show known active exploitation, and this CVE is not marked KEV. The CVSS temporal vector lists exploit maturity as unproven, so treat exploitation evidence as incomplete rather than confirmed.

Researcher notes

No CWE is listed in the provided bundle. Exact vulnerable function, disclosed data type, and fixed build details are not present here. Anchor validation to IBM X-Force ID 210893 and the IBM support bulletin.

Mitigation direction

  • Review IBM advisory and apply IBM-specified QRadar fixes or updates.
  • Inventory QRadar SIEM versions 7.3, 7.4, and 7.5 deployments.
  • Restrict QRadar privileged access to validated operational need.
  • Review privileged account ownership and remove stale access.
  • Monitor QRadar administrative activity for unusual sensitive-data access.

Validation and detection

  • Compare installed QRadar versions against IBM advisory affected versions.
  • Confirm IBM-recommended fix level is installed or tracked.
  • Review privileged QRadar users and assigned roles.
  • Check audit logs for privileged access anomalies.
  • Document compensating controls where fixes cannot be applied immediately.
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-2021-38936 mapping review

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
4.9 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/AV:N/I:N/C:H/UI:N/S:U/PR:H/AC:L/A:N/E:U/RL:O/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
4.9CVSS 3.0MediumCVSS:3.0/AV:N/I:N/C:H/UI:N/S:U/PR:H/AC:L/A:N/E:U/RL:O/RC:C1.23.6Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

4.9Medium
CVSS 3.0 vector shape for CVE-2021-38936Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/AV:N/I:N/C:H/UI:N/S:U/PR:H/AC:L/A:N/E:U/RL:O/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
IBMQRadar SIEM7.3.0, 7.4.0, 7.5.0, 7.3.3.FixPack11, 7.4.3.FixPack5, 7.5.0.UpdatePack1Listed
Weakness

CWE details

No CWE listed

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