CVE-2015-1638

Microsoft Active Directory Federation Services (AD FS) 3.0 on Windows Server 2012 R2 does not properly handle logoff actions, which allows remote attackers to bypass intended access restrictions by leveraging an unattended workstation, aka "Active Directory Federation Services Information Disclosure Vulnerability."

CVSS 5.8 · Medium

External lookup

Potential internet exposure

Potential exposure only — not proof of vulnerability.Shodan results indicate potentially internet-exposed products, not confirmed vulnerable systems. They do not confirm that any returned system is vulnerable to CVE-2015-1638.

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Product CPE queries

Derived from this CVE's existing NVD CPE 2.3 records; the application, operating-system, or hardware part is retained.

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Exact CVE query

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Metadata

Canonical fields

NVD status

Unavailable

Published

Apr 14, 2015

Modified

Jun 17, 2026

Official record

Authoritative NVD record

CVSS vector

AV:N/AC:M/Au:N/C:P/I:P/A:N

CWE IDs

Vendor classifications

How this vector reads

CVSS 2.0 base metrics decoded below. This explanation does not recalculate or change the NVD score.

Access Vector (AV): Network. The vulnerable system can be reached across network boundaries.
Access Complexity (AC): Medium. Exploitation requires some additional access conditions.
Authentication (Au): None. The attacker does not need to authenticate.
Confidentiality Impact (C): Partial. There is a limited impact to this security property.
Integrity Impact (I): Partial. There is a limited impact to this security property.
Availability Impact (A): None. There is no impact to this security property.

Signals

Exploitation indicators

0 stored signals · no KEV · 0 OTX pulses