PT-2020-4327 · Microsoft · Windows Application Compatibility Client Library+1

Ga1Ois + 4 · Published 2020-10-13 · Updated 2023-12-31 · CVE-2020-16876

Positive Technologies (AI Summary)

CVSS v3.1

7.1

High

Base vector

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

Name of the Vulnerable Software and Affected Versions: Windows Application Compatibility Client Library (affected versions not specified)

Description: The issue is related to the improper handling of registry operations by the Windows Application Compatibility Client Library, which could allow an attacker to gain elevated privileges. To exploit this, an attacker would first need code execution on a victim system and then run a specially crafted application. The security update addresses the vulnerability by ensuring the library properly handles registry operations.

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

Weakness Enumeration

CWE-264

Related Identifiers

BDU:2020-04824

CVE-2020-16876

Affected Products

Windows

Windows Application Compatibility Client Library

References · 6

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16876 · Vendor Advisory
• https://bdu.fstec.ru/vul/2020-04824 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2020-16876 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16876 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2020-16876 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-16876 · Vendor Advisory