CVE-2023-37524 HIGH

CVE-2023-37524: HCL Traveler for Microsoft Outlook (HTMO) is susceptible to vulnerabilities due to .NET Framework 4.5 being out of service

Vendor Hclsoftware
Product Traveler for Microsoft Outlook
Weakness CWE-1104
Published June 27, 2026
Last update June 29, 2026
View on NVD All CVEs

CVSS base score

7.7/10
Attack vector Local
Attack complexity High
Privileges required None
User interaction Required
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

June 27, 2026 CVE published
June 29, 2026 Record updated