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CVE-2019-1449
CRITICAL
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'.
Published: Nov 12, 2019
Modified: Jun 17, 2026
NVD-CWE-noinfo
CVSS Metrics
CVSSv3
Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products (2)
| Vendor | Product | Version |
|---|---|---|
| microsoft | office | 2019 |
| microsoft | office_365_proplus | - |
GitHub Security Advisory GHSA-hgr7-mfwx-6c5g
A security feature bypass vulnerability exists in the way that Office Click-to-Run (C2R)...
References (2)
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1449 Patch, Vendor Advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1449 Patch, Vendor Advisory
Risk Scores
CVSS Score
9.8 / 10
EPSS Score
6.36%
Top 7% most likely to be exploited
Threat Score
41.1 / 100
Data Sources
NVD
EPSS
GitHub