CVE-2026-58529

Windows Active Directory Federation Services (ADFS) Information Disclosure Vulnerability

Published Jul 14, 2026 CVSS 3.1 · 7.1 High EPSS 1.0% KEV · Not listed
Description
Out-of-bounds read in Active Directory Federation Services (AD FS) allows an authorized attacker to disclose information over a network.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Microsoft windows 11 26h1
Vendors & Products Microsoft windows 11 26h1
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Out-of-bounds read in Active Directory Federation Services (AD FS) allows an authorized attacker to disclose information over a network.
Title Windows Active Directory Federation Services (ADFS) Information Disclosure Vulnerability
First Time appeared Microsoft
Microsoft windows 11 26h1
Weaknesses CWE-125
CPEs cpe:2.3:o:microsoft:windows_11_26H1:*:*:*:*:*:*:x64:*
Vendors & Products Microsoft
Microsoft windows 11 26h1
References
Metrics cvssV3_1

{'score': 7.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L/E:U/RL:O/RC:C'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
microsoft
Published
Updated
Nov 10, 2026, 10:41 PM
Reserved
Jul 1, 2026, 4:33 AM
Status
Analyzed
Published
Jul 14, 2026, 6:18 PM
Modified
Oct 24, 2026, 9:10 PM