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CVE-2026-21770

HCL Traveler for Microsoft Outlook (HTMO) is susceptible to DLL hijacking

HCL Traveler for Microsoft Outlook (HTMO) is susceptible to a DLL hijacking vulnerability which could allow an attacker to modify or replace the application with malicious content.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Hcltech
Products
Traveler For Microsoft Outlook
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.

CVSS 3.1 · 6.7 Medium EPSS < 1% KEV · Not listed
Vendors
Hcltech
Products
Traveler For Microsoft Outlook
CVE-2023-37524

HCL Traveler for Microsoft Outlook (HTMO) is susceptible to vulnerabilities due to .NET Framework 4.5 being out of service

HCL Traveler for Microsoft Outlook (HTMO) is susceptible to vulnerabilities due to .NET Framework 4.5 being out of service.  Since .NET Framework 4.5 has reached end-of-life and no longer receives security updates, it may expose the application to publicly known security weaknesses through vulnerable third-party components.

CVSS 3.1 · 7.7 High EPSS < 1% KEV · Not listed
Vendors
Hcltech
Products
Traveler For Microsoft Outlook
CVE-2025-59868

HCL Traveler for Microsoft Outlook (HTMO) is susceptible to sensitive data exposure

HCL Traveler for Microsoft Outlook (HTMO) is susceptible to a sensitive data exposure vulnerability which could allow an attacker to exploit application information to then attempt additional attacks and cause unknown behavior in the application.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Hcltech
Products
Traveler For Microsoft Outlook
CVE-2024-30134

HCL Traveler for Microsoft Outlook (HTMO) is susceptible to an application modification vulnerability

The HCL Traveler for Microsoft Outlook executable (HTMO.exe) is being flagged as potentially Malicious Software or an Unrecognized Application.

CVSS 3.1 · 6.7 Medium EPSS < 1% KEV · Not listed
Vendors
Hcltech
Products
Traveler Traveler For Microsoft Outlook
CVE-2024-30133

HCL Traveler for Microsoft Outlook (HTMO) is susceptible to a control flow vulnerability

HCL Traveler for Microsoft Outlook (HTMO) is susceptible to a control flow vulnerability. The application does not sufficiently manage its control flow during execution, creating conditions in which the control flow can be modified in unexpected ways.

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Vendors
Hcltech
Products
Traveler For Microsoft Outlook
CVE-2024-42190

HCL Traveler for Microsoft Outlook (HTMO) is susceptible to DLL hijacking

HCL Traveler for Microsoft Outlook (HTMO) is susceptible to a DLL hijacking vulnerability which could allow an attacker to modify or replace the application with malicious content.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Hcltech
Products
Traveler For Microsoft Outlook
CVE-2024-42191

HCL Traveler for Microsoft Outlook (HTMO) is susceptible to COM hijacking

HCL Traveler for Microsoft Outlook (HTMO) is susceptible to a COM hijacking vulnerability which could allow an attacker to modify or replace the application with malicious content.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Hcltech
Products
Traveler For Microsoft Outlook
CVE-2024-42192

HCL Traveler for Microsoft Outlook (HTMO) is susceptible to a credential leakage

HCL Traveler for Microsoft Outlook (HTMO) is susceptible to a credential leakage which could allow an attacker to access other computers or applications.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Hcltech
Products
Traveler Traveler For Microsoft Outlook