CVE-2026-21770: HCL Traveler for Microsoft Outlook (HTMO) < 3.0.16

CVE-2026-21770. CVSS 3.1 base score 6.5 (MEDIUM, Vendor/CNA). EPSS 0.00163 (percentile 0.05196), scored 24-Oct-2026.

Affected technology

HCL Traveler for Microsoft Outlook (HTMO) · < 3.0.16
HCLSoftware

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 3.1): Local · High privileges required · User interaction required

What an attacker can do

An attacker could modify or replace the application with malicious content. Vendor/CNA’s CVSS 3.1 assessment (base score 6.5/10) rates confidentiality, integrity and availability impact as high.

Published 25-Oct-2026 01:30 UTC

CWE: CWE-427
CCR priority: 26.0 /100 (P4)
CVSS 3.1: 6.5 /10 · CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H · Vendor/CNA
EPSS: 0.00163 · percentile 0.05196 · 2026-10-24
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-25 01:28:19.133527+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-21770.html