CVE-2026-21517

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-21517
Improper link resolution before file access ('link following') in Windows App for Mac allows an authorized attacker to elevate privileges locally.

4.7 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.0 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21517 Vendor Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:microsoft:windows_app:*:*:*:*:*:macos:*:*
History

25 Feb 2026, 14:20

Type Values Removed Values Added
First Time Microsoft windows App
Microsoft
CPE cpe:2.3:a:microsoft:windows_app:*:*:*:*:*:macos:*:*
Summary
  • (es) Resolución de enlaces incorrecta antes del acceso a archivos (seguimiento de enlaces) en la aplicación de Windows para Mac permite a un atacante autorizado elevar privilegios localmente.
References () https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21517 - () https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21517 - Vendor Advisory

11 Feb 2026, 02:16

Type Values Removed Values Added
CVSS v2 : unknown
v3 : 7.0 		v2 : unknown
v3 : 4.7

10 Feb 2026, 18:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-02-10 18:16

Updated : 2026-02-25 14:20

NVD link : CVE-2026-21517

Mitre link : CVE-2026-21517

CVE.ORG link : CVE-2026-21517

JSON object : View

Products Affected

microsoft

  • windows_app
CWE
CWE-59

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