CVE-2023-37524
Published: 27 June 2026
Summary
CVE-2023-37524 is a high-severity Use of Unmaintained Third Party Components (CWE-1104) vulnerability in Hcl Software (inferred from references). Its CVSS base score is 7.7 (High).
Operationally, it is not currently listed in the CISA KEV catalog.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-60599
Vulnerability details
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…
more
security weaknesses through vulnerable third-party components.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Security groups frequently discuss maintenance status of third-party components, aiding identification and avoidance of unmaintained ones.
Maintaining an accurate, reviewed inventory of all system components enables tracking of third-party software versions and maintenance status, reducing the risk of using unmaintained components.
The maintenance policy requires regular updates and upkeep of systems and third-party components, directly reducing the presence of unmaintained software that attackers can exploit.
Requiring quick access to maintenance support and spare parts after failure necessitates using actively supported components rather than unmaintained third-party ones.
Contact with security communities directly informs personnel of unmaintained components and their vulnerabilities, reducing the likelihood of their continued use.
Threat intelligence sharing directly informs organizations of newly discovered vulnerabilities and exploitation in third-party components, enabling timely updates or replacement before attackers can leverage them.
Resource allocation in investment requests funds regular maintenance, patching, and updates of third-party components.
Organization-wide SCRM policy includes ongoing evaluation of third-party component support lifecycles to avoid unmaintained dependencies.