CVE-2018-8598 Information disclosure in Microsoft Excel

What is CVE-2018-8598?

CVE-2018-8598 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 improperly discloses the contents of its memory, aka "Microsoft Excel Information Disclosure Vulnerability." This affects Office 365 ProPlus, Microsoft Office, Microsoft Excel. This CVE ID is unique from CVE-2018-8627.

Which versions are affected by CVE-2018-8598?

It affects 3 products.

Products include Microsoft Excel, Microsoft Office, Microsoft Office 365 Proplus.

How do I fix CVE-2018-8598?

No fix has been published for CVE-2018-8598 yet. Limit exposure of the affected software until one is available.

Is CVE-2018-8598 being exploited?

There is no known exploitation of CVE-2018-8598 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-643h-w2r6-x59x.