Critical severity · published May 30, 2025
CVE-2024-42191
HCL Traveler for Microsoft Outlook (HTMO) is susceptible to COM hijacking
9.8
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 21% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
HT
HCL Traveler for Microsoft Outlook (HTMO) · HCL Software
< 3.0.12 · source: vendor
TF
Traveler For Microsoft Outlook · Hcltech
before 3.0.12 · source: NVD
Affected product
HT
HCL Traveler for Microsoft Outlook (HTMO)
HCL Software
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-42191
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-42191
Vendor Advisory
https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0120745
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