Link following in Windows App for Mac - CVE-2026-21517
Published: February 10, 2026
Vulnerability identifier: #VU122565
CSH Severity: Low
CVSS v4: 7.3 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-21517
CWE-ID: CWE-59
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to an insecure link following issue in Windows App for Mac Installer. A local user can create a specially crafted symbolic link to a critical file on the system and overwrite it with privileges of the application.
Affected software
Windows App for Mac
How to mitigate CVE-2026-21517
Install updates from vendor's website.