CVE-2018-8627 Information disclosure in Excel

What is CVE-2018-8627?

CVE-2018-8627 is a medium-severity vulnerability in Microsoft Excel, published on 12 Dec 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

An information disclosure vulnerability exists when Microsoft Excel software reads out of bound memory due to an uninitialized variable, which could disclose the contents of memory, aka "Microsoft Excel Information Disclosure Vulnerability." This affects Microsoft Office, Office 365 ProPlus, Microsoft Excel, Microsoft Excel Viewer, Excel. This CVE ID is unique from CVE-2018-8598.

Weakness: CWE-908

Which versions are affected by CVE-2018-8627?

It affects 6 products.

Products include Microsoft Excel, Microsoft Excel Viewer, Microsoft Office, Microsoft Office 365 Proplus, Microsoft Office Compatibility Pack, Microsoft Sharepoint Server.

How do I fix CVE-2018-8627?

No fix has been published for CVE-2018-8627 yet. Limit exposure of the affected software until one is available.

Is CVE-2018-8627 being exploited?

There is no known exploitation of CVE-2018-8627 in the wild and no public exploit code.

Other vulnerabilities in Microsoft Excel

• CVE-2019-1297 Microsoft Excel Remote Code Execution Exploited High 8.8
• CVE-2009-0238 Microsoft Office Remote Code Execution Exploited High 8.8
• CVE-2016-7262 Microsoft Office Security Feature Bypass Exploited High 7.8
• CVE-2009-3129 Microsoft Excel Featheader Record Memory Corruption Exploited High 7.8
• CVE-2008-0081 Code injection in n/a Critical 9.8

All Microsoft Excel vulnerabilities

Sources

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

Also known as GHSA-jq29-w2g2-mrm3.