What’s Vulnerable › Vulnerabilities

CVE-2018-8126

• Severity: high (CVSS 8.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 5.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-05-09 · updated 2026-06-17

Description

A security feature bypass vulnerability exists when Internet Explorer fails to validate User Mode Code Integrity (UMCI) policies, aka "Internet Explorer Security Feature Bypass Vulnerability." This affects Internet Explorer 11.

Affected products

• Microsoft Internet Explorer 11: 11
• Microsoft Internet Explorer 11: Windows 10 for 32-bit Systems, Windows 10 for x64-based Systems, Windows 10 Version 1607 for 32-bit Systems, Windows 10 Version 1607 for x64-based Systems, Windows 10 Version 1703 for 32-bit Systems, Windows 10 Version 1703 for x64-based Systems (+5)

References

• http://www.securityfocus.com/bid/103997
• http://www.securitytracker.com/id/1040846
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8126
• http://www.securityfocus.com/bid/103997
• http://www.securitytracker.com/id/1040846
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8126

Get alerted when CVE-2018-8126 or the next vulnerability affects your stack