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CVE-2019-1006

HighPublished

An authentication bypass vulnerability exists in Windows Communication Foundation (WCF) and Windows Identity Foundation (WIF), allowing signing of SAML...

Published: Jul 15, 2019
Updated: Aug 4, 2024
Assigning CNA: microsoft
Evidence observed: Aug 7, 2026

Primary CVSS

7.5/ 10High

nvd · CVSS 3.0

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS probability estimate

6.0%

Low · next 30 days

Percentile: 93.0%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

An authentication bypass vulnerability exists in Windows Communication Foundation (WCF) and Windows Identity Foundation (WIF), allowing signing of SAML tokens with arbitrary symmetric keys, aka 'WCF/WIF SAML Token Authentication Bypass Vulnerability'.

Sources

CVE-2019-1006Scanner
Checks Remote Desktop Gateway servers for CVE-2019-1006 by sending crafted requests to a user-supplied URL and reporting whether the target is vulnerable.

Responsible use

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