Information disclosure in Hclsoftware Traveler For Microsoft Outlook

CVE-2025-59868

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.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.002 (3.6th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 4th percentile — 3.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-59868: held from 0.002 to 0.002.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-59868?
CVE-2025-59868 is a medium-severity vulnerability in Hclsoftware Traveler For Microsoft Outlook, classified under Insertion of Sensitive Information into Log File. CVSS score: 5.5/10. Published 2026-06-27.
How severe is CVE-2025-59868?
Medium severity. CVSS v3 base score is 5.5 out of 10.