CVE-2021-34522 : Microsoft Defender Remote Code Execution Vulnerability

Microsoft Defender Remote Code Execution Vulnerability

Published 2021-07-14 18:15:12

Updated 2023-12-28 23:15:41

View at NVD, CVE.org

Vulnerability category: Execute code

Products affected by CVE-2021-34522

Microsoft » Malware Protection Engine
Versions before (<) 1.1.18242.0
cpe:2.3:a:microsoft:malware_protection_engine:*:*:*:*:*:*:*:*
Matching versions

EPSS FAQ

7.93%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 94 %

Percentile, the proportion of vulnerabilities that are scored at or less

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
9.3	HIGH	AV:N/AC:M/Au:N/C:C/I:C/A:C	8.6	10.0	NIST
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: Complete Integrity Impact: Complete Availability Impact: Complete
7.8	HIGH	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H	1.8	5.9	NIST
Attack Vector: Local Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Unchanged Confidentiality: High Integrity: High Availability: High
7.8	HIGH	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H	1.8	5.9	Microsoft Corporation
Attack Vector: Local Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Unchanged Confidentiality: High Integrity: High Availability: High

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34522

CVE-2021-34522 - Security Update Guide - Microsoft - Microsoft Defender Remote Code Execution Vulnerability
Patch;Vendor Advisory

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