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CVE-2020-1338

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CVE-2020-1338

Published: Sep 11, 2020

Modified: Aug 4, 2024

PUBLISHED

CVSS v3.1

7.8

HIGH

Description

<p>A remote code execution vulnerability exists in Microsoft Word software when it fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could use a specially crafted file to perform actions in the security context of the current user. For example, the file could then take actions on behalf of the logged-on user with the same permissions as the current user.</p> <p>To exploit the vulnerability, a user must open a specially crafted file with an affected version of Microsoft Word software. In an email attack scenario, an attacker could exploit the vulnerability by sending the specially crafted file to the user and convincing the user to open the file. In a web-based attack scenario, an attacker could host a website (or leverage a compromised website that accepts or hosts user-provided content) that contains a specially crafted file that is designed to exploit the vulnerability. However, an attacker would have no way to force the user to visit the website. Instead, an attacker would have to convince the user to click a link, typically by way of an enticement in an email or Instant Messenger message, and then convince the user to open the specially crafted file.</p> <p>The security update addresses the vulnerability by correcting how Microsoft Word handles files in memory.</p>

VendorProductVersions

Microsoft

Microsoft SharePoint Server 2019

affected
16.0.0 - < publication

Microsoft

Microsoft Office 2019

affected
19.0.0 - < https://aka.ms/OfficeSecurityReleases

Microsoft

Microsoft Office 2019 for Mac

affected
16.0.0 - < publication

Microsoft

Microsoft Office Online Server

affected
16.0.1 - < publication

Microsoft

Microsoft 365 Apps for Enterprise

affected
16.0.1 - < https://aka.ms/OfficeSecurityReleases

Microsoft

Microsoft Office 2016 for Mac

affected
16.0.0 - < publication

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

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