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CVE Record

CVE-2021-39074: IBM Security Guardium 11.4 is vulnerable to cross-site scripting.

IBM Security Guardium 11.4 is vulnerable to cross-site scripting. This vulnerability allows users to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session.

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 Guardium 11.4 has a web interface cross-site scripting flaw. A victim who interacts with malicious content in a trusted session could have unintended JavaScript run in their browser, potentially exposing credentials or changing what the UI appears to do.

Executive priority

Treat as a moderate-priority enterprise security fix. It can affect a security monitoring platform and may expose credentials, but available evidence requires user interaction and does not show confirmed active exploitation.

Technical view

CVE-2021-39074 affects IBM Security Guardium 11.4. The CVSS 3.0 vector is 6.1 medium: network reachable, low complexity, no privileges required, user interaction required, changed scope, low confidentiality and integrity impact, and no availability impact.

Likely exposure

Exposure is most likely where IBM Security Guardium 11.4 Web UI is accessible to users who can be lured into interacting with malicious content. The bundle does not identify other affected versions or products.

Exploitation context

The source bundle does not show CISA KEV listing or evidence of observed active exploitation. The CVSS vector includes user interaction required, so practical abuse depends on reaching a logged-in or trusted user through social engineering or a related workflow.

Researcher notes

The bundle identifies XSS in the Web UI with potential credential disclosure. No CWE, affected CPEs, exploit details, or exact fixed version are provided here, so validation should stay tied to IBM’s advisory and local version evidence.

Mitigation direction

  • Identify all IBM Security Guardium 11.4 deployments.
  • Review IBM advisory 6598759 for the official remediation.
  • Apply IBM-provided fixes or upgrade guidance for affected systems.
  • Limit Web UI access to trusted administrative networks where feasible.
  • Increase monitoring for suspicious Guardium Web UI activity.

Validation and detection

  • Confirm Guardium version inventory includes or excludes 11.4.
  • Check whether IBM advisory remediation is applied.
  • Verify Web UI exposure from untrusted networks.
  • Review logs for unusual UI-driven credential or session activity.
  • Confirm no unsupported Guardium versions remain in production.
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-2021-39074 mapping review

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

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

Vector: CVSS:3.0/AC:L/A:N/AV:N/C:L/UI:R/I:L/PR:N/S:C/RC:C/RL:O/E:H

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/AC:L/A:N/AV:N/C:L/UI:R/I:L/PR:N/S:C/RC:C/RL:O/E:H2.82.7Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

6.1Medium
CVSS 3.0 vector shape for CVE-2021-39074Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/AC:L/A:N/AV:N/C:L/UI:R/I:L/PR:N/S:C/RC:C/RL:O/E:H

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 Guardium11.4Listed
Weakness

CWE details

No CWE listed

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