What’s Vulnerable › Vulnerabilities

CVE-2020-0663

• Severity: medium (CVSS 4.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-02-11 · updated 2026-06-17

Description

An elevation of privilege vulnerability exists when Microsoft Edge does not properly enforce cross-domain policies, which could allow an attacker to access information from one domain and inject it into another domain.In a web-based attack scenario, an attacker could host a website that is used to attempt to exploit the vulnerability, aka 'Microsoft Edge Elevation of Privilege Vulnerability'.

Affected products

• Microsoft Edge: all versions
• Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for 32-bit Systems: all versions
• Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for ARM64-based Systems: all versions
• Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for x64-based Systems: all versions
• Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1809 for 32-bit Systems: all versions
• Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1809 for ARM64-based Systems: all versions
• Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1809 for x64-based Systems: all versions
• Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1903 for 32-bit Systems: all versions
• Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1903 for ARM64-based Systems: all versions
• Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1903 for x64-based Systems: all versions
• Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1909 for 32-bit Systems: all versions
• Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1909 for ARM64-based Systems: all versions
• Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1909 for x64-based Systems: all versions
• Microsoft Edge (EdgeHTML-based) on Windows Server 2019: all versions

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0663
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0663

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