PT-2021-6977 · Microsoft · Windows Installer+1

Abdelhamid Naceri · Published 2021-09-14 · Updated 2023-12-28 · CVE-2021-36961

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

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

Description The issue is related to insufficient input validation in the Windows Installer service, which can be exploited to cause a denial of service. This allows an attacker to affect the system. No information is provided about the estimated number of potentially affected devices or real-world incidents where this issue was exploited.

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

RCE

Weakness Enumeration

CWE-20

Related Identifiers

BDU:2022-02794

CVE-2021-36961

ZDI-21-1078

Affected Products

Windows

Windows Installer

References · 9

• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36961 · Security Note
• https://bdu.fstec.ru/vul/2022-02794 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-36961 · Security Note
• https://osv.dev/vulnerability/CVE-2021-36961 · Vendor Advisory
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-36961 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2021-36961 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-36961 · Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-21-1078 · Security Note
• https://t.me/cvenotify/20952 · Telegram Post