vulntracker.iovulntracker.io
© 2026 vulntracker.io

CVE-2026-58529

Windows Active Directory Federation Services (ADFS) Information Disclosure Vulnerability

HIGH
7.1
CVSS Score
Published: July 14, 2026 at 05:10 PM UTC
Updated: October 28, 2026 at 08:07 PM UTC
1 product affected across 1 vendorWindows 11 26H1

Using Windows 11 version 26H1 by Microsoft?

Get instant alerts when new vulnerabilities affect Windows 11 version 26H1 - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Start FreeSign In
Severity
HIGH7.1
Exploit prediction
EPSS 1%
SSVC
No known exploit

Description

Out-of-bounds read in Active Directory Federation Services (AD FS) allows an authorized attacker to disclose information over a network.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Windows 11 26H1· Microsoft
95%
v < 10.0.28000.252510.0.28000.0
Affected range stops below 10.0.28000.2525, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor AdvisoryPatch
Source: cverecord
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58529

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.1HIGHmicrosoft
Vector?

Quick Info

StatusANALYZED
CWE
CWE-125

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create accountSign in
Free plan, no card