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CVE Record

CVE-2021-38929: IBM System Storage DS8000 Management Console (HMC) R8.5 88.5x.x.x, R9.1 89.1x.0.0, and R9.2 89.2x.0.0 could...

IBM System Storage DS8000 Management Console (HMC) R8.5 88.5x.x.x, R9.1 89.1x.0.0, and R9.2 89.2x.0.0 could allow a remote attacker to obtain sensitive information through unpublished URLs. IBM X-Force ID: 210330.

MediumCVSS 5.3Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2021-38929 is an information disclosure issue in IBM System Storage DS8000 Management Console HMC. A remote unauthenticated attacker could obtain sensitive information through unpublished URLs. The listed impact is limited to confidentiality, with no integrity or availability impact in the provided CVSS vector.

Executive priority

Handle as a moderate infrastructure security task. It affects storage management systems and can disclose sensitive information remotely, but provided sources do not show active exploitation or service disruption impact.

Technical view

Affected IBM Hardware Management Console releases are R8.5 88.5x.x.x, R9.1 89.1x.0.0, and R9.2 89.2x.0.0. CVSS 3.0 is 5.3: network exploitable, low complexity, no privileges, no user interaction, low confidentiality impact, unchanged scope.

Likely exposure

Organizations using IBM System Storage DS8000 HMC in the listed release trains may be exposed. Risk is higher if the management console is reachable from broad internal networks or the internet. The source bundle does not state default exposure or required configuration.

Exploitation context

The source bundle marks this CVE as not in CISA KEV and gives exploit maturity as unproven. No provided source states active exploitation. Treat it as a remote information disclosure risk, not confirmed exploitation activity.

Researcher notes

Evidence is concise and vendor-linked, but the bundle does not include exact fixed builds or disclosed URL details. Avoid testing unpublished URLs outside authorized validation. Focus on version confirmation, management-plane exposure, and IBM advisory remediation mapping.

Mitigation direction

  • Identify DS8000 HMC systems running the affected release trains.
  • Review IBM advisory 6570741 for exact remediation levels.
  • Apply IBM-recommended updates or fixes for affected HMC versions.
  • Restrict HMC access to trusted administration networks only.
  • Monitor HMC logs for unusual unpublished URL access.

Validation and detection

  • Inventory IBM DS8000 HMC versions across storage environments.
  • Confirm whether any systems match R8.5, R9.1, or R9.2 affected levels.
  • Check IBM advisory and X-Force entry for current fixed-version guidance.
  • Verify HMC interfaces are not internet-exposed.
  • Review recent HMC access logs for suspicious information-disclosure indicators.
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-2021-38929 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/AC:L/S:U/C:L/A:N/PR:N/I:N/UI: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
5.3CVSS 3.0MediumCVSS:3.0/AV:N/AC:L/S:U/C:L/A:N/PR:N/I:N/UI:N/RL:O/E:U/RC:C3.91.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

5.3Medium
CVSS 3.0 vector shape for CVE-2021-38929Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/AV:N/AC:L/S:U/C:L/A:N/PR:N/I:N/UI: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
IBMHardware Management ConsoleR8.5 88.5x.x.x, R9.1 89.1x.0.0, R9.2 89.2x.0.0Listed
Weakness

CWE details

No CWE listed

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