Unauthenticated information disclosure
Published Oct 13, 2026 · Updated Oct 13, 2026
Information disclosure in Microsoft AD FS allows remote attackers to obtain information through a network-observable discrepancy. The retrieved Microsoft record does not identify the affected request handler, the differing responses, or the operation that exposes information. Exploitation requires network access but no authentication or user interaction; the disclosed behavior reveals information without a reported ability to modify data or interrupt service.
Summary
What happened
Information disclosure in Microsoft AD FS allows remote attackers to obtain information through a network-observable discrepancy. The retrieved Microsoft record does not identify the affected request handler, the differing responses, or the operation that exposes information. Exploitation requires network access but no authentication or user interaction; the disclosed behavior reveals information without a reported ability to modify data or interrupt service.
The record
- CVE
- CVE-2026-97788
- Published
- Oct 13, 2026
- Updated
- Oct 13, 2026
- Vendor
- Microsoft Corporation
- Product
- Windows Server 2019
- Classifications
- CWE-203
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Oct 13, 2026CVE publishedPublication date reported by the CVE source.
- Oct 13, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=10.0.17763.0 <10.0.17763.9376
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Activity data is delayed. The latest report is Sep 28, 2026.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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