PT-2021-3291 · Microsoft · Windows Defender

Published 2021-06-08 · Updated 2023-08-01 · CVE-2021-31985

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 Windows Defender (affected versions not specified)

Description The issue is related to incorrect code generation management in Windows Defender, which is part of the Windows operating system. Exploitation of this issue may allow an attacker to execute arbitrary code.

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

Code Injection

Weakness Enumeration

CWE-94

Related Identifiers

BDU:2021-03065

CVE-2021-31985

Affected Products

Windows Defender

References · 10

• https://nvd.nist.gov/vuln/detail/CVE-2021-31985 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-31985 · Vendor Advisory
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31985 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-03065 · Security Note
• https://osv.dev/vulnerability/CVE-2021-31985 · Vendor Advisory
• https://t.me/cvenotify/17275 · Telegram Post
• http://packetstormsecurity.com/files/163443/MpEngine-ASProtect-Embedded-Runtime-DLL-Memory-Corruption.html · Note
• https://t.me/cybersecuritytechnologies/3793 · Telegram Post
• https://t.me/cvenotify/30830 · Telegram Post
• https://cybersecurity-help.cz/vdb/SB2021060834 · Note