{"schema_version":1,"title":"HCL Software Traveler for Microsoft Outlook vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 3 vulnerabilities in HCL Software Traveler for Microsoft Outlook: 0 in the last 7 days and 1 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-21770, was published on 17 July 2026.","url":"https://junglewise.ai/threats/technologies/traveler-for-microsoft-outlook","json_url":"https://junglewise.ai/threats/technologies/traveler-for-microsoft-outlook.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/technologies/traveler-for-microsoft-outlook","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","counts":{"high":1,"all_time":3,"critical":0,"exploited":0,"last_7_days":0,"last_30_days":0,"last_90_days":1,"last_365_days":3},"latest":[{"cve":"CVE-2026-21770","cvss":6.5,"slug":"cve-2026-21770-hcl-traveler-for-microsoft-outlook-dll-hijacking","title":"HCL Traveler for Microsoft Outlook DLL hijacking","severity":"medium","exploited":false,"published_at":"2026-07-17T05:16:38.567+00:00","url":"https://junglewise.ai/threats/cve-2026-21770-hcl-traveler-for-microsoft-outlook-dll-hijacking"},{"cve":"CVE-2023-37524","cvss":7.7,"slug":"cve-2023-37524-hcl-traveler-for-microsoft-outlook-use-of-unmaintained-net","title":"HCL Traveler for Microsoft Outlook use of unmaintained .NET Framework 4.5","severity":"high","exploited":false,"published_at":"2026-06-27T02:16:27.603+00:00","url":"https://junglewise.ai/threats/cve-2023-37524-hcl-traveler-for-microsoft-outlook-use-of-unmaintained-net"},{"cve":"CVE-2024-23581","cvss":6.7,"slug":"cve-2024-23581-hcl-traveler-for-microsoft-outlook-use-of-unmaintained-components","title":"HCL Traveler for Microsoft Outlook use of unmaintained components","severity":"medium","exploited":false,"published_at":"2026-06-26T21:16:32.163+00:00","url":"https://junglewise.ai/threats/cve-2024-23581-hcl-traveler-for-microsoft-outlook-use-of-unmaintained-components"}],"weekly":[{"week":"2026-07-06","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-13","critical":0,"exploited":0,"vulnerabilities":1},{"week":"2026-07-20","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-27","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-03","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-10","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-31","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-14","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-28","critical":0,"exploited":0,"vulnerabilities":0}],"related":[{"name":"HCL Software Aftermarket EPC","slug":"aftermarket-epc","vulnerabilities":15,"url":"https://junglewise.ai/threats/technologies/aftermarket-epc"},{"name":"HCL Software DFXAnalytics","slug":"dfxanalytics","vulnerabilities":10,"url":"https://junglewise.ai/threats/technologies/dfxanalytics"},{"name":"HCL Software MyCloud","slug":"mycloud","vulnerabilities":7,"url":"https://junglewise.ai/threats/technologies/mycloud"},{"name":"HCL Software DFXServer","slug":"dfxserver","vulnerabilities":5,"url":"https://junglewise.ai/threats/technologies/dfxserver"},{"name":"HCL Software DevOps Deploy","slug":"devops-deploy","vulnerabilities":4,"url":"https://junglewise.ai/threats/technologies/devops-deploy"},{"name":"HCL Software DevOps Launch","slug":"devops-launch","vulnerabilities":3,"url":"https://junglewise.ai/threats/technologies/devops-launch"},{"name":"HCL Software IntelliOps Event Management","slug":"intelliops-event-management","vulnerabilities":3,"url":"https://junglewise.ai/threats/technologies/intelliops-event-management"}],"technology":{"hub":true,"name":"HCL Software Traveler for Microsoft Outlook","slug":"traveler-for-microsoft-outlook","vendor":{"name":"HCL Software","slug":"hcl-software","url":"https://junglewise.ai/threats/vendors/hcl-software"},"aliases":[],"category":"client-software","homepage":"https://www.hcl-software.com/traveler","repo_url":"https://www.hcl-software.com/traveler","description":"An add-in for Microsoft Outlook that enables synchronization of mail, calendar, and contacts with HCL Domino servers.","url":"https://junglewise.ai/threats/technologies/traveler-for-microsoft-outlook"},"most_severe":[{"cve":"CVE-2023-37524","cvss":7.7,"slug":"cve-2023-37524-hcl-traveler-for-microsoft-outlook-use-of-unmaintained-net","title":"HCL Traveler for Microsoft Outlook use of unmaintained .NET Framework 4.5","severity":"high","exploited":false,"published_at":"2026-06-27T02:16:27.603+00:00","url":"https://junglewise.ai/threats/cve-2023-37524-hcl-traveler-for-microsoft-outlook-use-of-unmaintained-net"},{"cve":"CVE-2024-23581","cvss":6.7,"slug":"cve-2024-23581-hcl-traveler-for-microsoft-outlook-use-of-unmaintained-components","title":"HCL Traveler for Microsoft Outlook use of unmaintained components","severity":"medium","exploited":false,"published_at":"2026-06-26T21:16:32.163+00:00","url":"https://junglewise.ai/threats/cve-2024-23581-hcl-traveler-for-microsoft-outlook-use-of-unmaintained-components"},{"cve":"CVE-2026-21770","cvss":6.5,"slug":"cve-2026-21770-hcl-traveler-for-microsoft-outlook-dll-hijacking","title":"HCL Traveler for Microsoft Outlook DLL hijacking","severity":"medium","exploited":false,"published_at":"2026-07-17T05:16:38.567+00:00","url":"https://junglewise.ai/threats/cve-2026-21770-hcl-traveler-for-microsoft-outlook-dll-hijacking"}],"generated_at":"2026-09-28T03:07:00.154823+00:00"}