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CVE Record

CVE-2020-4382: IBM Spectrum Scale for IBM Elastic Storage Server 5.3.0 through 5.3.5 could allow an authenticated user to...

IBM Spectrum Scale for IBM Elastic Storage Server 5.3.0 through 5.3.5 could allow an authenticated user to cause a denial of service during deployment or upgrade pertaining to xcat services. IBM X-Force ID: 179163.

MediumCVSS 6.2Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This issue could let a user disrupt IBM Elastic Storage Server deployment or upgrade operations involving xCAT services. The impact is service availability, not data theft or tampering. Based on the provided sources, it is a medium-severity operational risk mainly relevant during platform lifecycle work.

Executive priority

Handle during normal vulnerability remediation, but raise priority before ESS deployment or upgrade windows. The business risk is disruption to storage platform operations, not confirmed compromise or data exposure.

Technical view

CVE-2020-4382 affects IBM Spectrum Scale for IBM Elastic Storage Server 5.3.0 through 5.3.5. The CVSS 3.0 score is 6.2, with local attack vector, low complexity, no confidentiality or integrity impact, and high availability impact. IBM X-Force tracks it as ID 179163.

Likely exposure

Exposure is likely limited to organizations running affected IBM Elastic Storage Server versions and using xCAT services during deployment or upgrade. The provided evidence does not support broad internet-facing exposure.

Exploitation context

The source bundle does not show CISA KEV listing or active exploitation. CVSS exploit maturity is listed as unproven. Treat this as a validated denial-of-service vulnerability, not as evidence of known in-the-wild exploitation.

Researcher notes

Evidence is limited to CVE metadata, IBM advisory references, and IBM X-Force. The bundle identifies denial of service related to xCAT services but does not provide root-cause detail, exploit mechanics, or a specific fixed version.

Mitigation direction

  • Review IBM advisory 6320001 for the vendor-approved fix path.
  • Apply the IBM-supported update or mitigation named in the advisory.
  • Prioritize remediation before planned deployment or upgrade activity.
  • Restrict deployment and upgrade access to trusted administrative users.
  • Monitor xCAT service health during ESS lifecycle operations.

Validation and detection

  • Inventory IBM Elastic Storage Server versions in use.
  • Confirm whether any systems run ESS 5.3.0 through 5.3.5.
  • Review xCAT service exposure during deployment and upgrade workflows.
  • Check IBM X-Force ID 179163 for vendor status details.
  • Verify remediation by confirming the IBM-advised fixed state.
Prepared
Confidence
high
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-2020-4382 mapping review

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
6.2 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/I:N/UI:N/AC:L/C:N/S:U/AV:L/PR:N/A:H/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
6.2CVSS 3.0MediumCVSS:3.0/I:N/UI:N/AC:L/C:N/S:U/AV:L/PR:N/A:H/RC:C/E:U/RL:O2.53.6Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

6.2Medium
CVSS 3.0 vector shape for CVE-2020-4382Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/I:N/UI:N/AC:L/C:N/S:U/AV:L/PR:N/A:H/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
IBMElastic Storage Server5.3.0, 5.3.6Listed
Weakness

CWE details

No CWE listed

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