How severe is CVE-2024-42191?

CVE-2024-42191 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2024-42191 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-42191?

CVE-2024-42191 affects Hcltech Traveler For Microsoft Outlook. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-42191?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2024-42191 have an EU (EUVD) identifier?

Yes. CVE-2024-42191 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-54613.

When was CVE-2024-42191 published?

CVE-2024-42191 was published on 2025-05-30 and last updated on 2026-06-17.

CVE-2024-42191

CVE-2024-42191 is a medium-severity vulnerability in Hcltech Traveler For Microsoft Outlook with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-427.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (15th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-54613
Weakness: CWE-427
Affected product: Hcltech Traveler For Microsoft Outlook
Published: 2025-05-30
Last modified: 2026-06-17

Description

HCL Traveler for Microsoft Outlook (HTMO) is susceptible to a COM hijacking vulnerability which could allow an attacker to modify or replace the application with malicious content.

Frequently asked questions

What is CVE-2024-42191?: HCL Traveler for Microsoft Outlook (HTMO) is susceptible to a COM hijacking vulnerability which could allow an attacker to modify or replace the application with malicious content.
How severe is CVE-2024-42191?: CVE-2024-42191 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2024-42191 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-42191?: CVE-2024-42191 affects Hcltech Traveler For Microsoft Outlook. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-42191?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-42191 have an EU (EUVD) identifier?: Yes. CVE-2024-42191 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-54613.
When was CVE-2024-42191 published?: CVE-2024-42191 was published on 2025-05-30 and last updated on 2026-06-17.

References

https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0120745

Affected products (1)

cpe:2.3:a:hcltech:traveler_for_microsoft_outlook:*:*:*:*:*:*:*:*

More vulnerabilities in Hcltech Traveler For Microsoft Outlook

CVE-2023-37524 — High (CVSS 7.7): HCL Traveler for Microsoft Outlook (HTMO) is susceptible to vulnerabilities due to .NET Framework 4.5 being out of…
CVE-2024-23581 — Medium (CVSS 6.7): The HCL Traveler for Microsoft Outlook libraries are being flagged as potentially malicious software or an unrecognized…
CVE-2024-30134 — Medium (CVSS 6.7): The HCL Traveler for Microsoft Outlook executable (HTMO.exe) is being flagged as potentially Malicious Software or an…
CVE-2024-42190 — Medium (CVSS 6.5): HCL Traveler for Microsoft Outlook (HTMO) is susceptible to a DLL hijacking vulnerability which could allow an attacker…
CVE-2025-59868 — Medium (CVSS 5.5): HCL Traveler for Microsoft Outlook (HTMO) is susceptible to a sensitive data exposure vulnerability which could allow…
CVE-2024-42192 — Medium (CVSS 5.5): HCL Traveler for Microsoft Outlook (HTMO) is susceptible to a credential leakage which could allow an attacker to…

All CVEs affecting Hcltech Traveler For Microsoft Outlook →

Other CWE-427 (Uncontrolled Search Path Element) vulnerabilities

CVE-2025-4981 — Critical (CVSS 9.9): Mattermost versions 10.5.x <= 10.5.5, 9.11.x <= 9.11.15, 10.8.x <= 10.8.0, 10.7.x <= 10.7.2, 10.6.x <= 10.6.5 fail to…
CVE-2025-69599 — Critical (CVSS 9.8): RayVentory Scan Engine through 12.6 Update 8 allows attackers to gain privileges if they control the value of the PATH…
CVE-2019-25268 — Critical (CVSS 9.8): NREL BEopt 2.8.0.0 contains a DLL hijacking vulnerability that allows attackers to load arbitrary libraries by tricking…
CVE-2023-53959 — Critical (CVSS 9.8): FileZilla Client 3.63.1 contains a DLL hijacking vulnerability that allows attackers to execute malicious code by…
CVE-2025-65741 — Critical (CVSS 9.8): Sublime Text 3 Build 3208 or prior for MacOS is vulnerable to Dylib Injection. An attacker could compile a .dylib file…
CVE-2024-23054 — Critical (CVSS 9.8): An issue in Plone Docker Official Image 5.2.13 (5221) open-source software that could allow for remote code execution…

Browse all CWE-427 (Uncontrolled Search Path Element) vulnerabilities →