PT-2020-4318 · Microsoft · Office Click-To-Run

Published 2020-10-13 · Updated 2023-12-31 · CVE-2020-16955

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions: Microsoft Office Click-to-Run (C2R) (affected versions not specified)

Description: The issue is related to the handling of certain files by Microsoft Office Click-to-Run (C2R) AppVLP, which can lead to an elevation of privilege. An attacker would need to convince a user to open a specially crafted file to exploit this issue. The vulnerability is also described as a buffer overflow in memory, which can allow an attacker to elevate privileges using a specially crafted file.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

BDU:2020-04815

CVE-2020-16955

Affected Products

Office Click-To-Run

References · 4

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16955 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-16955 · Security Note
• https://osv.dev/vulnerability/CVE-2020-16955 · Vendor Advisory
• https://bdu.fstec.ru/vul/2020-04815 · Security Note