Is CVE-2019-1449 actively exploited?

No active exploitation of CVE-2019-1449 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2019-1449 be exploited remotely?

Yes. CVE-2019-1449 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2019-1449?

CVE-2019-1449 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2019-1449

CRITICAL

CVE-2019-1449

NVD-CWE-noinfoPublished: November 12, 2019· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official 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'.

NVD Source

Technical Analysis

CVE-2019-1449 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.