CVE-2019-1449 - 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'

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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

9.8

CRITICAL

CVSS 3.1

EPSS 6.81%

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

Vendor Microsoft Product Microsoft Office Default
n/a
- Version
  2019 for 32-bit editions
  Status
  affected
  Constraints
  -
- Version
  2019 for 64-bit editions
  Status
  affected
  Constraints
  -
Vendor Microsoft Product Office 365 ProPlus Default
n/a
- Version
  32-bit Systems
  Status
  affected
  Constraints
  -
- Version
  64-bit Systems
  Status
  affected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Microsoft

Microsoft Office

n/a

Version	Status	Constraints
2019 for 32-bit editions	affected	-
2019 for 64-bit editions	affected	-

Microsoft

Office 365 ProPlus

n/a

Version	Status	Constraints
32-bit Systems	affected	-
64-bit Systems	affected	-

Remediation

No remediation recorded yet.

Weaknesses (0)

No CWE recorded.

References (1)

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

Link	Providers	Tags
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1449		x_refsource_MISCPatchVendor Advisory

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner microsoft

Published Nov 12, 2019

Updated Aug 4, 2024

Reserved Nov 26, 2018

Link CVE-2019-1449

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 17, 2026

Link CVE-2019-1449

Red Hat

Severity n/a

Public date n/a

Links CVE-2019-1449