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CVE Record

CVE-2024-23581: HCL Traveler for Microsoft Outlook (HTMO) is susceptible to an application modification vulnerability

The HCL Traveler for Microsoft Outlook libraries are being flagged as potentially malicious software or an unrecognized application.

MediumCVSS 6.7Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

HCL Traveler for Microsoft Outlook before 3.0.9 has a library trust/modification issue. The public description says its libraries may be flagged as potentially malicious or unrecognized. Business impact is moderate because exploitation requires local access, low privileges, user interaction, and high attack complexity, but successful exploitation could affect confidentiality, integrity, and availability.

Executive priority

Treat as a managed workstation remediation item, not an emergency internet-facing incident. Prioritize high-value users and environments where HTMO is widely deployed, then complete normal patch validation and rollout.

Technical view

The CVE maps to CWE-347 and has CVSS 3.1 score 6.7: AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H. Affected product evidence is limited to HCL Traveler for Microsoft Outlook versions below 3.0.9. The description indicates an application modification or library recognition/trust problem, but public details are sparse.

Likely exposure

Exposure is most likely on user workstations running HCL Traveler for Microsoft Outlook below version 3.0.9. Servers or systems without HTMO are not indicated as affected by the provided sources.

Exploitation context

The source bundle does not show CISA KEV listing or active exploitation evidence. The CVSS vector indicates local attack requirements, high complexity, low privileges, and required user interaction. Do not assume remote exploitation from the available evidence.

Researcher notes

Public evidence is limited. The CVE identifies CWE-347 and an application modification vulnerability, but does not provide exploit mechanics. Validation should focus on version exposure, endpoint detections, and HCL guidance rather than speculative exploit testing.

Mitigation direction

  • Inventory endpoints for HCL Traveler for Microsoft Outlook installations.
  • Prioritize systems running HTMO versions below 3.0.9.
  • Upgrade affected installations to 3.0.9 or later per HCL guidance.
  • Review HCL KB0131417 for vendor-specific instructions and prerequisites.
  • Monitor endpoint security alerts involving HTMO libraries.

Validation and detection

  • Confirm installed HTMO version on managed endpoints.
  • Verify upgraded systems report version 3.0.9 or later.
  • Check endpoint protection logs for HTMO library detections.
  • Confirm security tooling no longer flags expected HTMO libraries after update.
  • Document exceptions where upgrade is deferred.
Prepared
Confidence
medium
Sources
3

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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cwe · low confidence lookup

CWE-347: Exact CWE lookup

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Open ATT&CK lookup
cve · low confidence lookup

CVE-2024-23581 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
6.7 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A: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
3Timeline events
1ADP providers
2Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: total

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
6.7CVSS 3.1MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H0.85.9HCL

Vulnerability scoring details

Base CVSS 3.1 score

6.7Medium
CVSS 3.1 vector shape for CVE-2024-23581Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

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

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
HCLSoftwareTraveler for Microsoft Outlook< 3.0.9unaffected
Weakness

CWE details

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