CVE-2018-8577

Name: CVE-2018-8577
Creator: NVD / NIST
Published: 2018-11-14T01:29:01.847+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 19.06%

Last modified Jun 17, 2026

CVE-2018-8577 is a vulnerability of currently unknown severity. 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 Office, Office 365 ProPlus, Microsoft Excel, Microsoft Excel Viewer, Excel. This CVE ID is unique from CVE-2018-8574.. EPSS estimates a 19.06% chance of exploitation in the next 30 days.

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 Office, Office 365 ProPlus, Microsoft Excel, Microsoft Excel Viewer, Excel. This CVE ID is unique from CVE-2018-8574.

Metrics

EPSS Probability

19.06%

97.0th 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	Excel Viewer	2007	Sp3
Microsoft	Office	2010	Sp2
Microsoft	Office	2013	Sp1
Microsoft	Office	2016	—
Microsoft	Office	2019	—
Microsoft	Office 365 Proplus	All versions	—
Microsoft	Office Compatibility Pack	All versions	Sp3
Microsoft	Office Web Apps Server	2013	Sp1

References

http://www.securityfocus.com/bid/105834Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1042134Third Party Advisory, VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8577Patch, Vendor Advisory
http://www.securityfocus.com/bid/105834Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1042134Third Party Advisory, VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8577Patch, Vendor Advisory

Timeline

Published: Nov 14, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-8577?

How severe is CVE-2018-8577?

Severity scoring for CVE-2018-8577 is pending analysis. The EPSS model estimates a 19.06% probability of exploitation in the next 30 days.

How do I fix CVE-2018-8577?

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-2018-8577?

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

Scan your code now

Source: NVD / NIST