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CVE Record

CVE-2021-45421: Emerson Dixell XWEB-500 products are affected by information disclosure via directory listing.

Emerson Dixell XWEB-500 products are affected by information disclosure via directory listing. A potential attacker can use this misconfiguration to access all the files in the remote directories. Note: the product has not been supported since 2018 and should be removed or replaced.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2021-45421 is an information disclosure issue in Emerson Dixell XWEB-500 caused by directory listing being enabled. The cited description says attackers could access files in remote directories. The product is unsupported since 2018, so the main business issue is legacy exposure rather than patch management.

Executive priority

Treat this as a legacy-system exposure issue. If XWEB-500 is present, replacement should be prioritized because there is no support path identified in the supplied sources.

Technical view

The issue is a web directory listing misconfiguration affecting Emerson Dixell XWEB-500. Public CVE data does not provide CVSS, CWE, affected version ranges, or a patch. The source note says the product should be removed or replaced because support ended in 2018.

Likely exposure

Exposure is most likely where Emerson Dixell XWEB-500 systems remain deployed, especially if reachable from untrusted networks. The source bundle does not identify affected versions, default configurations, or internet exposure levels.

Exploitation context

CISA KEV status is false in the supplied bundle, and no cited source states active exploitation. The described weakness is simple information exposure through directory listing, but the available evidence does not confirm real-world exploitation.

Researcher notes

Evidence is limited. The CVE record names directory listing information disclosure and unsupported product status, but provides no CVSS, CWE, version range, patch, or exploitation confirmation. Avoid assuming broader Emerson product impact.

Mitigation direction

  • Identify any Emerson Dixell XWEB-500 deployments in asset inventories.
  • Prioritize removal or replacement because the product is unsupported since 2018.
  • Check Emerson or Swascan guidance for environment-specific remediation details.
  • Restrict network reachability while replacement planning is underway.
  • Review exposed files for sensitive operational or credential material.

Validation and detection

  • Confirm whether any XWEB-500 systems are deployed or externally reachable.
  • Verify whether directory listing exposes files on affected systems.
  • Document what files were exposed and whether sensitive data is present.
  • Confirm removal, replacement, or approved isolation is complete.
  • Track residual risk where unsupported systems remain operational.
Prepared
Confidence
medium
Sources
3

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

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CVE-2021-45421 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
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.

0CVSS vectors
3Timeline events
1ADP providers
2Source links

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

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ADP provider summaries

CVECVE Program Container

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

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