PT-2021-3287 · Microsoft · Defender

Tavis Ormandy · Published 2021-06-08 · Updated 2023-08-01 · CVE-2021-31978

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

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

Description The issue exists due to insufficient input validation in Microsoft Defender, which is part of the Windows operating system. Exploitation of this issue may allow an attacker to cause a denial of service.

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:2021-03061

CVE-2021-31978

Affected Products

Defender

References · 6

• https://osv.dev/vulnerability/CVE-2021-31978 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-03061 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-31978 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-31978 · Vendor Advisory
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31978 · Vendor Advisory
• https://cybersecurity-help.cz/vdb/SB2021060834 · Note