Answer in brief
CVE-2023-37524 records a High severity (CVSS 7.7) vulnerability in HCL Traveler for Microsoft Outlook (HTMO) is susceptible to vulnerabilities due to .NET Framework 4.5 being out of service. The current sources do not mark it as known exploited. The current feed maps HCLSoftware/Traveler for Microsoft Outlook (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.7. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps HCLSoftware/Traveler for Microsoft Outlook (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| HCLSoftware/Traveler for Microsoft Outlookgeneric | <3.0.6 | Not reported |
Published upstream
Jun 27, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 29, 2026
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.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2023-37524 records a High severity (CVSS 7.7) vulnerability in HCL Traveler for Microsoft Outlook (HTMO) is susceptible to vulnerabilities due to .NET Framework 4.5 being out of service. The current sources do not mark it as known exploited. The current feed maps HCLSoftware/Traveler for Microsoft Outlook (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.7. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps HCLSoftware/Traveler for Microsoft Outlook (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| HCLSoftware/Traveler for Microsoft Outlookgeneric | <3.0.6 | Not reported |
Published upstream
Jun 27, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 29, 2026
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.
Quoted source text, attributed separately from HOL analysis.