CVE-2023-37524

High

Description

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.

SeverityHigh
CVSS7.7
Exploit probability—
ProductHcltech Traveler For Microsoft Outlook
PublishedJun 27, 2026
First seenJun 27, 2026
Weakness typeCWE-1104CWE-1104

How to fix

Update
  • hcltech traveler_for_microsoft_outlook3.0.6 or later

Affected products

ProductAffected versionsFixed in
hcltech traveler_for_microsoft_outlookv < 3.0.63.0.6

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