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CVE Record

CVE-2021-38864: IBM Security Verify Bridge 1.0.5.0 could allow a user to obtain sensitive information due to improper certi...

IBM Security Verify Bridge 1.0.5.0 could allow a user to obtain sensitive information due to improper certificate validation. IBM X-Force ID: 208155.

MediumCVSS 6.1Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

IBM Security Verify Bridge 1.0.5.0 has an improper certificate validation flaw that could expose sensitive information. The available sources describe confidentiality impact, not service disruption or data modification. Business urgency depends on whether this specific bridge version is deployed and reachable in environments where adjacent-network interception is plausible.

Executive priority

Moderate priority. This is not listed as actively exploited in the provided sources, but it can expose sensitive information in a security identity component. Organizations using IBM Security Verify Bridge should confirm version exposure and follow IBM guidance promptly.

Technical view

CVE-2021-38864 affects IBM Security Verify Bridge 1.0.5.0. CVSS 3.0 score is 6.1 with AV:A, AC:H, PR:N, UI:N, S:C, C:H, I:N, A:N. The issue is improper certificate validation leading to potential information disclosure. The bundle does not include CWE mapping or detailed remediation steps.

Likely exposure

Exposure appears limited to organizations running IBM Security Verify Bridge version 1.0.5.0. The CVSS adjacent-network attack vector and high attack complexity suggest exploitation requires a specific network position and conditions, but successful exploitation could significantly affect confidentiality.

Exploitation context

The source bundle marks KEV as false and CVSS exploit maturity as unproven. No cited source in the bundle states active exploitation or provides public exploit evidence. Treat exploitation claims as unconfirmed unless IBM, CISA KEV, or another cited source later confirms them.

Researcher notes

Evidence is concise: affected product and version, information disclosure impact, IBM X-Force ID 208155, and CVSS vector. The bundle lacks exploit narrative, CWE, fixed release details, and configuration-specific conditions. Avoid broader product assumptions beyond IBM Security Verify Bridge 1.0.5.0.

Mitigation direction

  • Inventory IBM Security Verify Bridge deployments and identify any version 1.0.5.0 instances.
  • Follow IBM advisory guidance for official remediation; the bundle does not name a fixed version.
  • Prioritize remediation for bridge deployments handling sensitive identity or authentication-related data.
  • Restrict network exposure to trusted segments while remediation is evaluated.
  • Monitor IBM X-Force and IBM Support for updated mitigation or fix details.

Validation and detection

  • Check asset inventories, package metadata, or deployment records for IBM Security Verify Bridge 1.0.5.0.
  • Confirm whether affected bridge instances process sensitive information or identity traffic.
  • Review network placement against the adjacent-network exposure implied by the CVSS vector.
  • Verify remediation status against IBM Support or X-Force guidance before closing the finding.
  • Document compensating controls if immediate vendor remediation is unavailable.
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-2021-38864 mapping review

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
6.1 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/PR:N/AV:A/S:C/UI:N/C:H/I:N/A:N/AC:H/RC:C/RL:O/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
6.1CVSS 3.0MediumCVSS:3.0/PR:N/AV:A/S:C/UI:N/C:H/I:N/A:N/AC:H/RC:C/RL:O/E:U1.64Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

6.1Medium
CVSS 3.0 vector shape for CVE-2021-38864Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/PR:N/AV:A/S:C/UI:N/C:H/I:N/A:N/AC:H/RC:C/RL:O/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 Verify Bridge1.0.5.0Listed
Weakness

CWE details

No CWE listed

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