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TI-2018-12027 Aliases CVE-2018-16794GHSA-59vp-r459-3wcr

Microsoft ADFS 4.0 Windows Server 2016 and previous (Active Directory Federation…

Priority MEDIUM 48CWE-918Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · High · None
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA.

Summary

Microsoft ADFS 4.0 Windows Server 2016 and previous (Active Directory Federation Services) has an SSRF vulnerability via the txtBoxEmail parameter in /adfs/ls.

Why it matters now

EPSS 0.08026 94th percentileScored 2026-11-07
Public exploit Yes 3 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:active_directory_federation_services:*:*:*:*:*:*:*:*up to 4.0VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*not specified by NVDRunning onMicrosoft
  • cpe:2.3:a:microsoft:active_directory_federation_services:*:*:*:*:*:*:*:* Versions up to 4.0 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-16794
  2. 2026-10-03 Alias added: GHSA-59vp-r459-3wcr

References

Exploit 3

  • TI-2013-02777 Microsoft Active Directory Federation Services (AD FS) 1.x through 2.1 on Windows Server… CVSS 2.0MEDIUM 5.0
  • TI-2014-05207 Microsoft Active Directory Federation Services (AD FS) 2.0, 2.1, and 3.0, when a… CVSS 2.0MEDIUM 5.0
  • TI-2015-01575 Cross-site scripting (XSS) vulnerability in adfs/ls in Active Directory Federation… CVSS 2.0MEDIUM 4.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences