CVE-2020-16955

Microsoft Office Click-to-Run Elevation of Privilege Vulnerability

Severity Score

7.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track*

*SSVC

Descriptions

An elevation of privilege vulnerability exists in the way that Microsoft Office Click-to-Run (C2R) AppVLP handles certain files. An attacker who successfully exploited the vulnerability could elevate privileges.
To exploit this vulnerability, an attacker would need to convince a user to open a specially crafted file.
The security update addresses the vulnerability by correcting how Microsoft Office Click-to-Run (C2R) components handle these files.

Se presenta una vulnerabilidad de escalada de privilegios en la manera que Microsoft Office Click-to-Run (C2R) AppVLP maneja determinados archivos, también se conoce como "Microsoft Office Click-to-Run Elevation of Privilege Vulnerability". Este ID de CVE es diferente de CVE-2020-16928, CVE-2020-16934

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:Track*

Exploitation

None

Automatable

Tech. Impact

Total

* Organization's Worst-case Scenario

Timeline

2020-08-04 CVE Reserved
2020-10-16 CVE Published
2024-02-19 EPSS Updated
2024-11-15 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16955	2023-12-31

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Microsoft Search vendor "Microsoft"		365 Apps Search vendor "Microsoft" for product "365 Apps"				-		enterprise		Affected
Microsoft Search vendor "Microsoft"		Office Search vendor "Microsoft" for product "Office"				2013 Search vendor "Microsoft" for product "Office" and version "2013"		click-to-run		Affected
Microsoft Search vendor "Microsoft"		Office Search vendor "Microsoft" for product "Office"				2019 Search vendor "Microsoft" for product "Office" and version "2019"		-		Affected