CVE-2018-0852 Memory corruption in Microsoft Office

High 8.8 Published Updated

Remote attackers can execute arbitrary code via memory corruption in Microsoft Outlook, requiring immediate patching for all affected Office versions.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2018-0852?

CVE-2018-0852 is a high-severity memory corruption vulnerability in Microsoft Office, published on 15 Feb 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Microsoft Outlook 2007 SP3, Microsoft Outlook 2010 SP2, Microsoft Outlook 2013 SP1 and RT SP1, Microsoft Outlook 2016, and Microsoft Office 2016 Click-to-Run (C2R) allow a remote code execution vulnerability, due to how Outlook handles objects in memory, aka "Microsoft Office Memory Corruption Vulnerability". This CVE is unique from CVE-2018-0851.

Weakness: CWE-787

Which versions are affected by CVE-2018-0852?

It affects 2 products.

Products include Microsoft Office, Microsoft Outlook.

How do I fix CVE-2018-0852?

No fix has been published for CVE-2018-0852 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2018-0852 being exploited?

There is no known exploitation of CVE-2018-0852 in the wild and no public exploit code.

All Microsoft Office vulnerabilities

Sources

Also known as GHSA-2jhv-9q6m-gc8r.

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