CVE-2026-41091

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-41091
Improper link resolution before file access ('link following') in Microsoft Defender allows an authorized attacker to elevate privileges locally.

7.8 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41091 Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-41091 Third Party Advisory US Government Resource
Configurations

Configuration 1 (hide)

cpe:2.3:a:microsoft:malware_protection_engine:*:*:*:*:*:*:*:*
History

24 Jul 2026, 10:10

Type Values Removed Values Added
Summary
  • (es) Resolución de enlaces incorrecta antes del acceso a archivos ('seguimiento de enlaces') en Microsoft Defender permite a un atacante autorizado elevar privilegios localmente.

17 Jun 2026, 10:46

Type Values Removed Values Added
References () https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-41091 - US Government Resource, Third Party Advisory () https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-41091 - Third Party Advisory, US Government Resource

20 May 2026, 19:06

Type Values Removed Values Added
First Time Microsoft
Microsoft malware Protection Engine
CPE cpe:2.3:a:microsoft:malware_protection_engine:*:*:*:*:*:*:*:*
References () https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41091 - () https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41091 - Vendor Advisory
References () https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-41091 - () https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-41091 - US Government Resource, Third Party Advisory

20 May 2026, 18:16

Type Values Removed Values Added
References
  • () https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-41091 -

20 May 2026, 13:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-05-20 13:16

Updated : 2026-07-24 10:10

NVD link : CVE-2026-41091

Mitre link : CVE-2026-41091

CVE.ORG link : CVE-2026-41091

JSON object : View

Products Affected

microsoft

  • malware_protection_engine
CWE
CWE-59

Improper Link Resolution Before File Access ('Link Following')