CVE-2026-58529: high-severity vulnerability in Microsoft Windows 11 version 26H1
Windows Active Directory Federation Services (ADFS) Information Disclosure Vulnerability
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.1epss 1.0%
Out-of-bounds read in Active Directory Federation Services (AD FS) allows an authorized attacker to disclose information over a network.
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
Affected products
Microsoft · Windows 11 version 26H1Related CVEs — Microsoft Windows 11 version 26H1
In the same product, most dangerous first.
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