CVE-2019-1449 Security feature bypass in Microsoft Office

What is CVE-2019-1449?

CVE-2019-1449 is a critical vulnerability in Microsoft Office, published on 12 Nov 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

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'.

Which versions are affected by CVE-2019-1449?

It affects 2 products.

Products include Microsoft Office, Microsoft Office 365 Proplus.

How do I fix CVE-2019-1449?

No fix has been published for CVE-2019-1449 yet. Limit exposure of the affected software until one is available.

Is CVE-2019-1449 being exploited?

There is no known exploitation of CVE-2019-1449 in the wild and no public exploit code.

Other vulnerabilities in Microsoft Office

• CVE-2018-0798 Microsoft Office Memory Corruption Exploited High 8.8
• CVE-2015-1770 Microsoft Office Uninitialized Memory Use Exploited High 8.8
• CVE-2006-2492 Microsoft Word Malformed Object Pointer Exploited High 8.8
• CVE-2018-0802 Microsoft Office Memory Corruption Exploited High 7.8
• CVE-2017-11882 Microsoft Office Memory Corruption Exploited High 7.8

All Microsoft Office vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-hgr7-mfwx-6c5g.