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CVE Record

CVE-2021-20498: IBM Security Verify Access Docker 10.0.0 reveals version information in HTTP requests that could be used in...

IBM Security Verify Access Docker 10.0.0 reveals version information in HTTP requests that could be used in further attacks against the system. IBM X-Force ID: 197972.

MediumCVSS 5.3Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

IBM Security Verify Access Docker 10.0.0 can expose its version in HTTP traffic. That information alone is not a compromise, but it can help attackers fingerprint the system and select later attacks. The business risk is moderate when the service is externally reachable or poorly segmented.

Executive priority

Treat this as a moderate hardening item, not an emergency breach indicator. Address it in normal vulnerability management, with faster action for internet-facing deployments because exposed version details can improve attacker targeting.

Technical view

CVE-2021-20498 is an information disclosure issue in IBM Security Verify Access Docker 10.0.0. The CVSS 3.0 score is 5.3, with network access, low complexity, no privileges, and low confidentiality impact. The supplied sources do not identify other affected versions.

Likely exposure

Exposure is limited to organizations running IBM Security Verify Access Docker version 10.0.0. Risk increases if HTTP interfaces are reachable from untrusted networks, internet-exposed, or visible to users who should not learn product and version details.

Exploitation context

The bundle does not show CISA KEV listing or cited evidence of active exploitation. The issue supports reconnaissance rather than direct code execution or data modification. Its value is in helping an attacker tailor follow-on attacks against a confirmed product version.

Researcher notes

The public bundle is narrow: affected product, version, CVSS vector, IBM advisory, and X-Force entry. It does not provide exploit details, affected CPEs, CWE mapping, or explicit remediation text. Avoid broadening scope beyond IBM Security Verify Access Docker 10.0.0.

Mitigation direction

  • Check IBM's advisory for official remediation or configuration guidance.
  • Inventory IBM Security Verify Access Docker deployments and identify version 10.0.0.
  • Prioritize remediation for internet-facing or broadly reachable deployments.
  • Restrict access to exposed HTTP interfaces to trusted networks where feasible.
  • Retest HTTP traffic after remediation for remaining version disclosure.

Validation and detection

  • Confirm whether IBM Security Verify Access Docker 10.0.0 is deployed.
  • Review service HTTP traffic for product or version information disclosure.
  • Check external exposure through asset inventory and perimeter scanning records.
  • Verify remediation status against IBM's published advisory.
  • Document unaffected versions only when confirmed by IBM guidance.
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

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

description · low confidence lookup

Container behavior lookup

The affected technology mentions containers, so container-specific ATT&CK technique review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2021-20498 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Medium
CVSS
5.3 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/PR:N/C:L/UI:N/S:U/I:N/AV:N/A:N/AC:L/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
5.3CVSS 3.0MediumCVSS:3.0/PR:N/C:L/UI:N/S:U/I:N/AV:N/A:N/AC:L/RC:C/E:U/RL:O3.91.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

5.3Medium
CVSS 3.0 vector shape for CVE-2021-20498Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/PR:N/C:L/UI:N/S:U/I:N/AV:N/A:N/AC:L/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
IBMSecurity Verify Access Docker10.0.0Listed
Weakness

CWE details

No CWE listed

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