CVE-2023-37524

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

7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.3% chance of exploitation in the next 30 days; higher than 19% of CVEs (scores of 2026-10-28)

CWE

CWE-1104

Published

2026-06-27

Modified

2026-10-28

Record from

the NVD, synced 2026-10-28

Affected

• hcltech:traveler_for_microsoft_outlook

References

• https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0131418

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