CVE-2020-16934Improper Input Validation in Microsoft 365 Apps FOR Enterprise

Severity
7.8HIGHNVD
CNA7.0
EPSS
3.8%
top 11.89%
CISA KEV
Not in KEV
Exploit
No known exploits
Timeline
PublishedOct 16
Latest updateMay 24

Description

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.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages4 packages

CVEListV5microsoft/microsoft_office_2013_click-to-run15.0.0.015.0.5571.1000
CVEListV5microsoft/microsoft_office_201919.0.0https://aka.ms/OfficeSecurityReleases
CVEListV5microsoft/microsoft_365_apps_for_enterprise16.0.1https://aka.ms/OfficeSecurityReleases

Patches

🔴Vulnerability Details

4
GHSA
GHSA-hfw2-mqmp-j26q: An elevation of privilege vulnerability exists in the way that Microsoft Office Click-to-Run (C2R) AppVLP handles certain files, aka 'Microsoft Office2022-05-24
GHSA
GHSA-3p6w-82x2-65rf: An elevation of privilege vulnerability exists in the way that Microsoft Office Click-to-Run (C2R) AppVLP handles certain files, aka 'Microsoft Office2022-05-24
GHSA
GHSA-x6hw-487w-hxf4: An elevation of privilege vulnerability exists in the way that Microsoft Office Click-to-Run (C2R) AppVLP handles certain files, aka 'Microsoft Office2022-05-24
CVEList
Microsoft Office Click-to-Run Elevation of Privilege Vulnerability2020-10-16

📋Vendor Advisories

1
Microsoft
Microsoft Office Click-to-Run Elevation of Privilege Vulnerability2020-10-13
CVE-2020-16934 — Improper Input Validation in Microsoft | cvebase