Out-of-bounds read in Microsoft Windows - CVE-2026-58529
Published: July 17, 2026
Vulnerability identifier: #VU138168
CSH Severity: Low
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-58529
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to disclose sensitive information.
The vulnerability exists due to out-of-bounds read in Active Directory Federation Services (AD FS) when handling network requests. A remote user can send a specially crafted request to disclose sensitive information.
Affected software
Microsoft Windows
How to mitigate CVE-2026-58529
Install security update from vendor's website.
Microsoft Windows - update to 11 26H1 10.0.28000.2525