CVE-2023-37524: HCL Traveler for Microsoft Outlook (HTMO) is susceptib
CVE-2023-37524 analysis covering impact, affected products, versions, remediation, and cross-checked defender guidance.
CVE-2023-37524 is a vulnerability published by NVD on 6/27/2026.
What happened
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.
Affected products and versions
- NVD has not published a normalized affected-product configuration yet.
Severity and weakness
CVSS: HIGH 7.7. Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H.
Weaknesses: CWE-1104.
Known exploitation
No CISA KEV entry is currently attached to the NVD record.
What defenders should do
- Identify whether the affected product and version range exists in production.
- Review vendor advisories and release notes before change windows.
- Patch, upgrade, disable the vulnerable component, or apply vendor mitigations.
- Verify the running version after deployment, not only the package inventory.
Official and supporting references
- No vendor advisory tagged by NVD at draft time.