CVE-2018-1027 Memory corruption in Microsoft Excel

High 7.8 Published Updated

Attackers can execute arbitrary code by exploiting a memory handling flaw in Microsoft Excel, requiring user interaction to open a malicious file.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2018-1027?

CVE-2018-1027 is a high-severity memory corruption vulnerability in Microsoft Excel, published on 12 Apr 2018. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory, aka "Microsoft Excel Remote Code Execution Vulnerability." This affects Microsoft Excel, Microsoft Office. This CVE ID is unique from CVE-2018-0920, CVE-2018-1011, CVE-2018-1029.

Which versions are affected by CVE-2018-1027?

It affects 2 products.

Products include Microsoft Excel, Microsoft Office Compatibility Pack.

How do I fix CVE-2018-1027?

No fix has been published for CVE-2018-1027 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-2018-1027 being exploited?

There is no known exploitation of CVE-2018-1027 in the wild and no public exploit code.

All Microsoft Excel vulnerabilities

Sources

Also known as GHSA-6cfh-j3mh-pg57.

Is CVE-2018-1027 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free