CVE-2020-1342: Microsoft 365 Apps

Medium severity, CVSS 5.5. EPSS: 6.4% chance of exploitation in the next 30 days.

An information disclosure vulnerability exists when Microsoft Office software reads out of bound memory due to an uninitialized variable, which could disclose the contents of memory, aka 'Microsoft Office Information Disclosure Vulnerability'. This CVE ID is unique from CVE-2020-1445.

Affected products

• Microsoft 365 Apps: affected versions not specified
• Microsoft Office: version 2010 only; version 2016 only; version 2019 only
• Microsoft Office Online Server: affected versions not specified
• Microsoft Office Web Apps: version 2010 only; version 2013 only
• Microsoft SharePoint Enterprise Server: version 2013 only; version 2016 only
• Microsoft SharePoint Server: version 2010 only; version 2019 only
• Microsoft Word: version 2010 only; version 2013 only; version 2016 only

Published 2020-07-14. Last modified 2026-06-17.