Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT Gold and 8.1, Windows 10, Excel 2007 SP3, PowerPoint 2007 SP3, Visio 2007 SP3, Word 2007 SP3, Office 2010 SP2, Excel 2010 SP2, PowerPoint 2010 SP2, Visio 2010 SP2, Word 2010 SP2, Excel 2013 SP1, PowerPoint 2013 SP1, Visio 2013 SP1, Word 2013 SP1, Excel 2013 RT SP1, PowerPoint 2013 RT SP1, Visio 2013 RT SP1, Word 2013 RT SP1, and Internet Explorer 7 through 11 allow remote attackers to gain privileges and obtain sensitive information via a crafted command-line parameter to an Office application or Notepad, as demonstrated by a transition from Low Integrity to Medium Integrity, aka "Unsafe Command Line Parameter Passing Vulnerability."
Conclusion & alert: CVE-2015-2423 is rated Moderate Risk (48.3/100): CVSS Medium severity, with high exploitation likelihood (EPSS 14.88%, 94th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. Mandatory action: 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.
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 | 2025-12-28 | 16.82% | 14.88% | -1.95% |
| 2 | 2025-12-27 | 14.88% | 16.82% | +1.95% |
| 3 | 2025-12-24 | — | 14.88% | — |
Full EPSS history (21 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 4.3 | 2.0 | MEDIUM |
|
8.6 | 2.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| microsoft | excel | 2007 | cpe:2.3:a:microsoft:excel:2007:sp3:*:*:*:*:*:* |
| microsoft | excel | 2010 | cpe:2.3:a:microsoft:excel:2010:sp2:*:*:*:*:*:* |
| microsoft | excel | 2013 | cpe:2.3:a:microsoft:excel:2013:sp1:*:*:*:*:*:* |
| microsoft | excel | 2013 | cpe:2.3:a:microsoft:excel:2013:sp1:*:*:rt:*:*:* |
| microsoft | office | 2010 | cpe:2.3:a:microsoft:office:2010:sp2:*:*:*:*:*:* |
| 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 | 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 | 2013 | cpe:2.3:a:microsoft:visio:2013:sp1:*:*:rt:*:*:* |
| 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:*:*:*:*:*:*:* |
| microsoft | internet_explorer | 7 | cpe:2.3:a:microsoft:internet_explorer:7:*:*:*:*:*:*:* |
| microsoft | internet_explorer | 8 | cpe:2.3:a:microsoft:internet_explorer:8:*:*:*:*:*:*:* |
| microsoft | internet_explorer | 9 | cpe:2.3:a:microsoft:internet_explorer:9:*:*:*:*:*:*:* |
| microsoft | internet_explorer | 10 | cpe:2.3:a:microsoft:internet_explorer:10:*:*:*:*:*:*:* |
| microsoft | internet_explorer | 11 | cpe:2.3:a:microsoft:internet_explorer:11:-:*:*:*:*:*:* |
| microsoft | windows_10 | — | cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:* |
| microsoft | windows_7 | — | cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:* |
| microsoft | windows_8 | — | cpe:2.3:o:microsoft:windows_8:-:*:*:*:*:*:*:* |
| microsoft | windows_8.1 | — | cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:* |
| microsoft | windows_rt | — | cpe:2.3:o:microsoft:windows_rt:-:*:*:*:*:*:*:* |
| microsoft | windows_rt_8.1 | — | cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:* |
| microsoft | windows_server_2008 | — | cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:* |
| microsoft | windows_server_2008 | r2 | cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:itanium:* |
| microsoft | windows_server_2008 | r2 | cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:* |
| microsoft | windows_server_2012 | — | cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:* |
| microsoft | windows_server_2012 | r2 | cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:* |
| microsoft | windows_vista | — | cpe:2.3:o:microsoft:windows_vista:-:sp2:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| http://www.securitytracker.com/id/1033237 | Third Party Advisory VDB Entry |
| http://www.securitytracker.com/id/1033239 | Third Party Advisory VDB Entry |
| http://www.securitytracker.com/id/1033248 | Third Party Advisory VDB Entry |
| https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-079 | Patch Vendor Advisory |
| https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-081 | Patch Vendor Advisory |
| https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-088 | Patch Vendor Advisory |