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As of 10/21/2026, Outlook.com recorded 1 security vulnerability in the last 90 days, of which 1 is rated High or Critical. Notably, 1 of these vulnerabilities is actively exploited (KEV) according to CISA's catalog. CyStack recommends that organizations and individual users apply patches as soon as possible.
CyStack does not yet have sufficient official-source data to identify the latest version of Outlook.com and determine which vulnerabilities affect that version.
CyStack VulnScan continuously discovers assets, validates vulnerabilities, and helps security teams prioritize remediation across the organization.
CVE-2026-96951Windows Shell Security Feature Bypass VulnerabilityCVE-2014-5239CVE-2014-5239| Vulnerability | Exploitation status | Fix | Published | Severity |
|---|---|---|---|---|
CVE-2026-96951Windows Shell Security Feature Bypass Vulnerability | Exploitation statusKEV | FixYes | Published10/13/2026 | SeverityHigh |
CVE-2014-5239CVE-2014-5239 | Exploitation statusNot confirmed | FixNo | Published08/14/2014 | SeverityUnknown |
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