PT-2021-1563 · Microsoft · Windows Installer+1

Anders Kusk · Published 2021-01-12 · Updated 2024-10-08 · CVE-2021-1661

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions: Windows Installer (affected versions not specified)

Description: The issue is related to insufficient access restrictions in the Windows Installer component of Windows operating systems. Exploitation of this issue may allow an attacker to elevate their privileges. It is an elevation-of-privilege issue that can affect the system.

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

LPE

Improper Initialization

Weakness Enumeration

CWE-665

CWE-264

Related Identifiers

BDU:2021-00162

CVE-2021-1661

Affected Products

Windows

Windows Installer

References · 8

• https://osv.dev/vulnerability/CVE-2021-1661 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2021-1661 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-1661 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-1661 · Security Note
• https://bdu.fstec.ru/vul/2021-00162 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1661 · Security Note
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1661 · Note
• https://cybersecurity-help.cz/vdb/SB2021011264 · Note