PT-2021-2077 · Microsoft · Windows

Michael J. Lyons · Published 2021-02-09 · Updated 2026-03-10 · CVE-2021-1731

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

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

Description: The issue is related to the implementation of PFX encryption technology in Microsoft Windows, specifically concerning the lack of protection for service data. This could allow an attacker to gain unauthorized access to protected information. There is no information 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.

Insufficiently Protected Credentials

Weakness Enumeration

CWE-254

CWE-522

Related Identifiers

BDU:2021-00928

CVE-2021-1731

Affected Products

Windows

References · 10

• https://osv.dev/vulnerability/CVE-2021-1731 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-1731 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2021-1731 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-1731 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1731 · Security Note
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1731 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-00928 · Security Note
• https://t.me/cvenotify/10528 · Telegram Post
• https://t.me/cibsecurity/24159 · Telegram Post
• https://cybersecurity-help.cz/vdb/SB2021020960 · Note