# CVE-2024-30134: HCL Traveler for Microsoft Outlook (HTMO) is susceptible to an application modification vulnerability

> The HCL Traveler for Microsoft Outlook executable is flagged as potentially malicious or unrecognized, causing security warnings.

- **Severity:** Medium 6.7 (`CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 26 Sep 2024
- **Updated:** 26 Sep 2024
- **Also known as:** GHSA-99f7-m726-289j

## What is CVE-2024-30134?

CVE-2024-30134 is a medium-severity vulnerability in HCL Traveler for Microsoft Outlook, published on 26 Sep 2024. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

The HCL Traveler for Microsoft Outlook executable (HTMO.exe) is being flagged as potentially Malicious Software or an Unrecognized Application.

Weakness: CWE-295 (Improper Certificate Validation)

## Which versions are affected by CVE-2024-30134?

It affects 1 product.


Products: Hcltech Traveler for Microsoft Outlook.

## How do I fix CVE-2024-30134?

No fix has been published for CVE-2024-30134 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-30134 being exploited?

There is no known exploitation of CVE-2024-30134 in the wild and no public exploit code.

## Other vulnerabilities in HCL Traveler for Microsoft Outlook

- [CVE-2023-37524](https://insights.sbomify.com/CVE-2023-37524/): HCL Traveler for Microsoft Outlook (HTMO) is susceptible to vulnerabilities due to .NET Framework 4.5 being out of service. (high 7.7)
- [CVE-2024-23581](https://insights.sbomify.com/CVE-2024-23581/): HCL Traveler for Microsoft Outlook (HTMO) is susceptible to an application modification vulnerability (medium 6.7)
- [CVE-2024-42190](https://insights.sbomify.com/CVE-2024-42190/): HCL Traveler for Microsoft Outlook (HTMO) is susceptible to DLL hijacking (medium 6.5)
- [CVE-2024-42191](https://insights.sbomify.com/CVE-2024-42191/): HCL Traveler for Microsoft Outlook (HTMO) is susceptible to COM hijacking (medium 6.5)
- [CVE-2025-59868](https://insights.sbomify.com/CVE-2025-59868/): HCL Traveler for Microsoft Outlook (HTMO) is susceptible to sensitive data exposure (medium 5.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-30134 and fix it if it is affected.

What it is: CVE-2024-30134 is a medium-severity vulnerability in HCL Traveler for Microsoft Outlook, published on 26 Sep 2024. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2024-30134 in the wild and no public exploit code.

Affected product: HCL Traveler for Microsoft Outlook. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2024-30134/ (Markdown: https://insights.sbomify.com/CVE-2024-30134/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-30134
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-30134
- OSV: https://osv.dev/vulnerability/CVE-2024-30134

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-30134/
Summaries are generated and may contain mistakes; the official description above is the record.