CVE-2018-8420 - Improper Restriction of XML External Entity Reference

Severity

93%

Complexity

86%

Confidentiality

165%

A remote code execution vulnerability exists when the Microsoft XML Core Services MSXML parser processes user input, aka "MS XML Remote Code Execution Vulnerability." This affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, Windows 10, Windows 10 Servers.

A remote code execution vulnerability exists when the Microsoft XML Core Services MSXML parser processes user input, aka "MS XML Remote Code Execution Vulnerability." This affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, Windows 10, Windows 10 Servers.

CVSS 3.0 Base Score 8.8. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).

CVSS 2.0 Base Score 9.3. CVSS Attack Vector: network. CVSS Attack Complexity: medium. CVSS Vector: (AV:N/AC:M/Au:N/C:C/I:C/A:C).

Overview

Type

Microsoft Windows 10

First reported 6 years ago

2018-09-13 00:29:00

Last updated 6 years ago

2018-11-19 14:20:00

Affected Software

Microsoft Windows 10 1703

1703

Microsoft Windows 10 1709

1709

Microsoft Windows 10 1803

1803

References

105259

Third Party Advisory, VDB Entry

1041627

Third Party Advisory, VDB Entry

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8420

Patch, Vendor Advisory

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