Vulnerability · Published Aug 17, 2020 · Assigned by microsoft

CVE-2020-1581Microsoft Office Click-to-Run Elevation of Privilege Vulnerability

High 7.8

In plain English

A high-severity security flaw in Microsoft 365 Apps for Enterprise from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 3.7% (higher than 90% of all known vulnerabilities).

Severity (CVSS NVD)7.8High
Exploit odds (30 days)3.7%top 10.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

An elevation of privilege vulnerability exists in the way that Microsoft Office Click-to-Run (C2R) components handle objects in memory. An attacker who successfully exploited the vulnerability could elevate privileges. The attacker would need to already have the ability to execute code on the system. An attacker could exploit this vulnerability by running a specially crafted application on the victim system. The security update addresses the vulnerability by correcting how Microsoft Office Click-to-Run (C2R) components handle objects in memory.

Affected products (as reported)

VendorProductVersions
Microsoft Microsoft Office 2013 Click-to-Run (C2R) 15.0.0.0 – before 15.0.5571.1000
Microsoft Microsoft Office 2019 19.0.0 – before https://aka.ms/OfficeSecurityReleases
Microsoft Microsoft 365 Apps for Enterprise 16.0.1 – before https://aka.ms/OfficeSecurityReleases

References