CVE-2020-1056

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'.

8.1

CVSS

Severity: High

CVSS 3.1 •

CVSS 2.0 •

EPSS 14.77% Top 10%

Vendor Advisory microsoft.com

Affected: Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for 32-bit Systems

Affected: Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for x64-based Systems

Affected: Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for ARM64-based Systems

Affected: Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1809 for 32-bit Systems

Affected: Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1809 for x64-based Systems

Affected: Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1809 for ARM64-based Systems

Affected: Microsoft Microsoft Edge (EdgeHTML-based) on Windows Server 2019

Affected: Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1909 for 32-bit Systems

Affected: Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1909 for x64-based Systems

Affected: Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1909 for ARM64-based Systems

Affected: Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1709 for 32-bit Systems

Affected: Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1709 for x64-based Systems

Affected: Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1709 for ARM64-based Systems

Affected: Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1903 for 32-bit Systems

Affected: Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1903 for x64-based Systems

Affected: Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1903 for ARM64-based Systems

Affected: Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1607 for 32-bit Systems

Affected: Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1607 for x64-based Systems

Affected: Microsoft Microsoft Edge (EdgeHTML-based) on Windows Server 2016

References

Link	Tags
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1056	patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-1056?: CVE-2020-1056 has been scored as a high severity vulnerability.
How to fix CVE-2020-1056?: To fix CVE-2020-1056, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-1056 being actively exploited in the wild?: It is possible that CVE-2020-1056 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~15% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-1056?: CVE-2020-1056 affects Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for 32-bit Systems, Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for x64-based Systems, Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for ARM64-based Systems, Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1809 for 32-bit Systems, Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1809 for x64-based Systems, Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1809 for ARM64-based Systems, Microsoft Microsoft Edge (EdgeHTML-based) on Windows Server 2019, Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1909 for 32-bit Systems, Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1909 for x64-based Systems, Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1909 for ARM64-based Systems, Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1709 for 32-bit Systems, Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1709 for x64-based Systems, Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1709 for ARM64-based Systems, Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1903 for 32-bit Systems, Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1903 for x64-based Systems, Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1903 for ARM64-based Systems, Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1607 for 32-bit Systems, Microsoft Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1607 for x64-based Systems, Microsoft Microsoft Edge (EdgeHTML-based) on Windows Server 2016.