CVE-2015-2503

Microsoft Access 2007 SP3, Excel 2007 SP3, InfoPath 2007 SP3, OneNote 2007 SP3, PowerPoint 2007 SP3, Project 2007 SP3, Publisher 2007 SP3, Visio 2007 SP3, Word 2007 SP3, Office 2007 IME (Japanese) SP3, Access 2010 SP2, Excel 2010 SP2, InfoPath 2010 SP2, OneNote 2010 SP2, PowerPoint 2010 SP2, Project 2010 SP2, Publisher 2010 SP2, Visio 2010 SP2, Word 2010 SP2, Pinyin IME 2010, Access 2013 SP1, Excel 2013 SP1, InfoPath 2013 SP1, OneNote 2013 SP1, PowerPoint 2013 SP1, Project 2013 SP1, Publisher 2013 SP1, Visio 2013 SP1, Word 2013 SP1, Excel 2013 RT SP1, OneNote 2013 RT SP1, PowerPoint 2013 RT SP1, Word 2013 RT SP1, Access 2016, Excel 2016, OneNote 2016, PowerPoint 2016, Project 2016, Publisher 2016, Visio 2016, Word 2016, Skype for Business 2016, and Lync 2013 SP1 allow remote attackers to bypass a sandbox protection mechanism and gain privileges via a crafted web site that is accessed with Internet Explorer, as demonstrated by a transition from Low Integrity to Medium Integrity, aka "Microsoft Office Elevation of Privilege Vulnerability."

Published: 2015-11-11 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2015-2503 is rated High Risk (66.3/100): CVSS Critical severity, with high exploitation likelihood (EPSS 15.49%, 95th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2015-2503

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-02-18 19.43% 15.49% -3.93%
2 2025-08-25 20.24% 19.43% -0.82%
3 2025-06-28 — 20.24% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-2503

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.3 2.0 HIGH
AV:N/AC:M/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 8.6 10.0 [email protected]

Weakness enumeration for CVE-2015-2503

Affected software / configurations for CVE-2015-2503

Vendor Product Version Raw CPE
microsoft access 2007 cpe:2.3:a:microsoft:access:2007:sp3:*:*:*:*:*:*
microsoft access 2010 cpe:2.3:a:microsoft:access:2010:sp2:*:*:*:*:*:*
microsoft access 2013 cpe:2.3:a:microsoft:access:2013:sp1:*:*:*:*:*:*
microsoft access 2016 cpe:2.3:a:microsoft:access:2016:*:*:*:*:*:*:*
microsoft excel 2007 cpe:2.3:a:microsoft:excel:2007:sp3:*:*:*:*:*:*
microsoft excel 2010 cpe:2.3:a:microsoft:excel:2010:sp2:*:*:*:*:x64:*
microsoft excel 2010 cpe:2.3:a:microsoft:excel:2010:sp2:*:*:*:*:x86:*
microsoft excel 2013 cpe:2.3:a:microsoft:excel:2013:sp1:*:*:*:*:*:*
microsoft excel 2013 cpe:2.3:a:microsoft:excel:2013:sp1:*:*:rt:*:*:*
microsoft excel 2016 cpe:2.3:a:microsoft:excel:2016:*:*:*:*:*:*:*
microsoft infopath 2007 cpe:2.3:a:microsoft:infopath:2007:sp3:*:*:*:*:*:*
microsoft infopath 2010 cpe:2.3:a:microsoft:infopath:2010:sp2:*:*:*:*:*:*
microsoft infopath 2013 cpe:2.3:a:microsoft:infopath:2013:sp1:*:*:*:*:*:*
microsoft lync 2013 cpe:2.3:a:microsoft:lync:2013:sp1:*:*:*:*:*:*
microsoft office_2007_ime sp3 cpe:2.3:a:microsoft:office_2007_ime:sp3:*:*:ja:*:*:*:*
microsoft onenote 2007 cpe:2.3:a:microsoft:onenote:2007:sp3:*:*:*:*:*:*
microsoft onenote 2010 cpe:2.3:a:microsoft:onenote:2010:sp2:*:*:*:*:*:*
microsoft onenote 2013 cpe:2.3:a:microsoft:onenote:2013:sp1:*:*:*:*:*:*
microsoft onenote 2013 cpe:2.3:a:microsoft:onenote:2013:sp1:*:*:rt:*:*:*
microsoft onenote 2016 cpe:2.3:a:microsoft:onenote:2016:*:*:*:*:*:*:*
microsoft pinyin_ime 2010 cpe:2.3:a:microsoft:pinyin_ime:2010:*:*:*:*:*:*:*
microsoft powerpoint 2007 cpe:2.3:a:microsoft:powerpoint:2007:sp3:*:*:*:*:*:*
microsoft powerpoint 2010 cpe:2.3:a:microsoft:powerpoint:2010:sp2:*:*:*:*:*:*
microsoft powerpoint 2013 cpe:2.3:a:microsoft:powerpoint:2013:sp1:*:*:*:*:*:*
microsoft powerpoint 2013 cpe:2.3:a:microsoft:powerpoint:2013:sp1:*:*:rt:*:*:*
microsoft powerpoint 2016 cpe:2.3:a:microsoft:powerpoint:2016:*:*:*:*:*:*:*
microsoft project 2007 cpe:2.3:a:microsoft:project:2007:sp3:*:*:*:*:*:*
microsoft project 2016 cpe:2.3:a:microsoft:project:2016:*:*:*:*:*:*:*
microsoft project_server 2010 cpe:2.3:a:microsoft:project_server:2010:sp2:*:*:*:*:*:*
microsoft project_server 2013 cpe:2.3:a:microsoft:project_server:2013:sp1:*:*:*:*:*:*
microsoft publisher 2007 cpe:2.3:a:microsoft:publisher:2007:sp3:*:*:*:*:*:*
microsoft publisher 2010 cpe:2.3:a:microsoft:publisher:2010:sp2:*:*:*:*:*:*
microsoft publisher 2013 cpe:2.3:a:microsoft:publisher:2013:sp1:*:*:*:*:*:*
microsoft publisher 2016 cpe:2.3:a:microsoft:publisher:2016:*:*:*:*:*:*:*
microsoft skype_for_business 2016 cpe:2.3:a:microsoft:skype_for_business:2016:*:*:*:*:*:*:*
microsoft visio 2007 cpe:2.3:a:microsoft:visio:2007:sp3:*:*:*:*:*:*
microsoft visio 2010 cpe:2.3:a:microsoft:visio:2010:sp2:*:*:*:*:*:*
microsoft visio 2013 cpe:2.3:a:microsoft:visio:2013:sp1:*:*:*:*:*:*
microsoft visio 2016 cpe:2.3:a:microsoft:visio:2016:*:*:*:*:*:*:*
microsoft word 2007 cpe:2.3:a:microsoft:word:2007:sp3:*:*:*:*:*:*
microsoft word 2010 cpe:2.3:a:microsoft:word:2010:sp2:*:*:*:*:*:*
microsoft word 2013 cpe:2.3:a:microsoft:word:2013:sp1:*:*:*:*:*:*
microsoft word 2013 cpe:2.3:a:microsoft:word:2013:sp1:*:*:rt:*:*:*
microsoft word 2016 cpe:2.3:a:microsoft:word:2016:*:*:*:*:*:*:*

References for CVE-2015-2503

cvelogic Threat Intelligence