Integer underflow in Microsoft Office 2007 SP3, Office 2010 SP2, Office 2013 SP1, Office 2013 RT SP1, Office for Mac 2011, and Word Viewer allows remote attackers to execute arbitrary code via a crafted document, aka "Microsoft Office Integer Underflow Vulnerability."
Conclusion & alert: CVE-2015-2470 is rated High Exploit Risk (89.3/100): CVSS Critical severity, with high exploitation likelihood (EPSS 66.76%, 99th percentile). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +2.63% over the last day, indicating growing attacker interest. Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| 37924 | exploit_db | edb | 2015-08-21 | Exploit-DB ↗ |
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 | 2026-03-04 | 64.13% | 66.76% | +2.63% |
| 2 | 2026-01-06 | 64.27% | 64.13% | -0.14% |
| 3 | 2025-06-10 | — | 64.27% | — |
Full EPSS history (12 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 9.3 | 2.0 | HIGH |
|
8.6 | 10.0 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| microsoft | office | 2010 | cpe:2.3:a:microsoft:office:2010:sp2:*:*:*:*:x64:* |
| microsoft | office | 2010 | cpe:2.3:a:microsoft:office:2010:sp2:*:*:*:*:x86:* |
| microsoft | office | 2011 | cpe:2.3:a:microsoft:office:2011:*:*:*:mac:*:*:* |
| microsoft | office | 2013 | cpe:2.3:a:microsoft:office:2013:sp1:*:*:*:*:*:* |
| microsoft | word | 2007 | cpe:2.3:a:microsoft:word:2007:sp3:*:*:*:*:*:* |
| microsoft | word_viewer | — | cpe:2.3:a:microsoft:word_viewer:*:*:*:*:*:*:*:* |