What’s Vulnerable › Vulnerabilities

CVE-2018-8403

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 13.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-08-15 · updated 2026-06-17
• Weakness: CWE-787

Description

A remote code execution vulnerability exists in the way that Microsoft browsers access objects in memory, aka "Microsoft Browser Memory Corruption Vulnerability." This affects Internet Explorer 11, Microsoft Edge, Internet Explorer 10.

Affected products

• Microsoft Edge: all versions
• Microsoft Internet Explorer 11: 11, 10
• Microsoft Edge: 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 (+1)
• 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 (+12)
• Microsoft Internet Explorer 10: Windows Server 2012

References

• http://www.securityfocus.com/bid/105033
• http://www.securitytracker.com/id/1041457
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8403
• http://www.securityfocus.com/bid/105033
• http://www.securitytracker.com/id/1041457
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8403

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