CVE-2015-2558

Name: CVE-2015-2558
Creator: NVD / NIST
Published: 2015-10-14T01:59:13.123+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 23.01%

Last modified Jun 17, 2026

CVE-2015-2558 is a vulnerability of currently unknown severity. Use-after-free vulnerability in Microsoft Excel 2007 SP3, Excel 2010 SP2, Excel 2013 SP1, Excel 2013 RT SP1, Excel 2016, Excel for Mac 2011, Excel 2016 for Mac, Excel Viewer, Office Compatibility Pack SP3, and Excel Services on SharePoint Server 2007 SP3, 2010 SP2, and 2013 SP1 allows remote attackers to execute arbitrary code via a long fileVersion element in an Office document, aka "Microsoft Office Memory Corruption Vulnerability.". EPSS estimates a 23.01% chance of exploitation in the next 30 days.

Description

Use-after-free vulnerability in Microsoft Excel 2007 SP3, Excel 2010 SP2, Excel 2013 SP1, Excel 2013 RT SP1, Excel 2016, Excel for Mac 2011, Excel 2016 for Mac, Excel Viewer, Office Compatibility Pack SP3, and Excel Services on SharePoint Server 2007 SP3, 2010 SP2, and 2013 SP1 allows remote attackers to execute arbitrary code via a long fileVersion element in an Office document, aka "Microsoft Office Memory Corruption Vulnerability."

Metrics

EPSS Probability

23.01%

97.5th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions	Update
Microsoft	Excel	2007	Sp3
Microsoft	Excel	2010	Sp2
Microsoft	Excel	2013	Sp1
Microsoft	Excel	2016	—
Microsoft	Excel For Mac	2011	—
Microsoft	Excel For Mac	2016	—
Microsoft	Excel Viewer	All versions	—
Microsoft	Office Compatibility Pack	All versions	Sp3
Microsoft	Office Sharepoint Server	2007	Sp3
Microsoft	Sharepoint Server	2010	Sp2
Microsoft	Sharepoint Server	2013	Sp1

References

http://www.securitytracker.com/id/1033803Third Party Advisory, VDB Entry
http://www.zerodayinitiative.com/advisories/ZDI-15-516Third Party Advisory, VDB Entry
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-110
http://www.securitytracker.com/id/1033803Third Party Advisory, VDB Entry
http://www.zerodayinitiative.com/advisories/ZDI-15-516Third Party Advisory, VDB Entry
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-110

Timeline

Published: Oct 14, 2015
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2015-2558?

How severe is CVE-2015-2558?

Severity scoring for CVE-2015-2558 is pending analysis. The EPSS model estimates a 23.01% probability of exploitation in the next 30 days.

How do I fix CVE-2015-2558?

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-2015-2558?

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

Scan your code now

Source: NVD / NIST