CVE-2019-1449
highpriority · track · 41EPSS 0.068 · 94 %ileEURUUSEPSS · scored 2026-10-27
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'.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 9–10
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (8)
Products and version ranges known to be affected.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (6)
External citations — patches, advisories, analysis.
- https://nvd.nist.gov/vuln/detail/CVE-2019-1449cnnvd
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1449cnnvd
- https://portal.msrc.microsoft.com/zh-CN/security-guidance/advisory/CVE-2019-1449cnnvd
- https://vigilance.fr/vulnerability/Microsoft-Office-vulnerabilities-of-November-2019-30840cnnvd
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1449enisa_euvd
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1449PatchVendor Advisorynvd
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