CVE-2025-59868
HCL Traveler for Microsoft Outlook (HTMO) is susceptible to sensitive data exposure
Description
HCL Traveler for Microsoft Outlook (HTMO) is susceptible to a sensitive data exposure vulnerability which could allow an attacker to exploit application information to then attempt additional attacks and cause unknown behavior in the application.
INFO
Published Date :
June 27, 2026, 2:16 a.m.
Last Modified :
July 6, 2026, 5:45 p.m.
Remotely Exploit :
No
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | 1e47fe04-f25f-42fa-b674-36de2c5e3cfc | ||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update HCL Traveler for Microsoft Outlook to the latest version.
- Apply all vendor-provided security patches immediately.
- Review application logs for suspicious activity.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-59868.
| URL | Resource |
|---|---|
| https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0131419 | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-59868 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-59868
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-59868 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-59868 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Jul. 06, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:hcltech:traveler_for_microsoft_outlook:*:*:*:*:*:*:*:* versions up to (excluding) 3.0.15 Added Reference Type HCL Software: https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0131419 Types: Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 29, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2025-59868', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-06-29T13:54:10.444124Z'} -
New CVE Received by [email protected]
Jun. 27, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'HCLSoftware', 'product': 'Traveler for Microsoft Outlook', 'versions': [{'status': 'affected', 'version': '<3.0.15'}], 'defaultStatus': 'unaffected'}] Added Description HCL Traveler for Microsoft Outlook (HTMO) is susceptible to a sensitive data exposure vulnerability which could allow an attacker to exploit application information to then attempt additional attacks and cause unknown behavior in the application. Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Added CWE CWE-532 Added Reference https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0131419