CVE-2018-8598

Name: CVE-2018-8598
Creator: NVD / NIST
Published: 2018-12-12T00:29:00.793+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 6.22%

Last modified Jun 17, 2026

CVE-2018-8598 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 6.22% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

6.22%

92.6th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions	Update
Microsoft	Excel	2010	Sp2
Microsoft	Excel	2013	Sp1
Microsoft	Excel	2016	—
Microsoft	Office	2019	—
Microsoft	Office 365 Proplus	All versions	—

References

http://www.securityfocus.com/bid/106102Third Party Advisory, VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8598Patch, Vendor Advisory
http://www.securityfocus.com/bid/106102Third Party Advisory, VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8598Patch, Vendor Advisory

Timeline

Published: Dec 12, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-8598?

How severe is CVE-2018-8598?

Severity scoring for CVE-2018-8598 is pending analysis. The EPSS model estimates a 6.22% probability of exploitation in the next 30 days.

How do I fix CVE-2018-8598?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-8598?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST