What’s Vulnerable › Vulnerabilities

CVE-2019-1449

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 6.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-11-12 · updated 2026-06-17

Description

A security feature bypass vulnerability exists in the way that Office Click-to-Run (C2R) components handle a specially crafted file, which could lead to a standard user, any AppContainer sandbox, and Office LPAC Protected View to escalate privileges to SYSTEM.To exploit this bug, an attacker would have to run a specially crafted file, aka 'Microsoft Office ClickToRun Security Feature Bypass Vulnerability'.

Affected products

• Microsoft Office: 2019
• Microsoft Office 365 ProPlus: all versions
• Microsoft Office: 2019 for 32-bit editions, 2019 for 64-bit editions
• Microsoft Office 365 ProPlus: 32-bit Systems, 64-bit Systems

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1449
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1449

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