The RegEx class in the XSS filter in Microsoft Internet Explorer 9 through 11 and Microsoft Edge allows remote attackers to conduct cross-site scripting (XSS) attacks and obtain sensitive information via unspecified vectors, aka "Microsoft Browser Information Disclosure Vulnerability."
Conclusion & alert: CVE-2016-7239 is rated Moderate Risk (43.9/100): CVSS Low severity, with high exploitation likelihood (EPSS 11.62%, 95th 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 | 2026-06-15 | 13.53% | 11.62% | -1.91% |
| 2 | 2025-03-30 | 28.09% | 13.53% | -14.56% |
| 3 | 2025-03-29 | — | 28.09% | — |
Full EPSS history (15 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 3.1 | 3.0 | LOW |
|
1.6 | 1.4 | [email protected] |
| 2.6 | 2.0 | LOW |
|
4.9 | 2.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| microsoft | edge | — | cpe:2.3:a:microsoft:edge:*:*:*:*:*:*:*:* |
| 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:*:*:*:*:*:*:* |