CVE-2026-21770
HCL Traveler for Microsoft Outlook (HTMO) is susceptible to DLL hijacking
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
HCL Traveler for Microsoft Outlook (HTMO) is susceptible to a DLL hijacking vulnerability which could allow an attacker to modify or replace the application with malicious content.
| CWE | CWE-427 |
| Vendor | hclsoftware |
| Product | hcl traveler for microsoft outlook (htmo) |
| Published | Jul 17, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
HCLSoftware / HCL Traveler for Microsoft Outlook (HTMO)
< 3.0.16