7.5

CVE-2019-1006: microsoft identitymodel Improper Certificate Validation

CVSS: 7.5v3.0HighModified
Published 15-07-2019Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2019-1006 is a high (CVSS 7.5) Improper Certificate Validation vulnerability in microsoft identitymodel. EPSS estimates a 6.02% chance of exploitation in the next 30 days, higher than 93.2% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.0 (NVD)
EPSS score
6.02%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 15-07-2019
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

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'.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

6.02%

Chance of exploitation in the next 30 days

Percentile

93%

Versus all other CVEs

30-day change

0.00 pp

From 6.02% on 19-09-2026

19-09-202619-10-2026
EPSS score
6.02%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Microsoft64 products
  • identitymodel7.0.0
  • microsoft .net framework 2.0Service Pack 2 on Windows Server 2008 for Itanium-Based Systems Service Pack 2 | Service Pack 2 on Windows Server 2008 for 32-bit Systems Service Pack 2 | Service Pack 2 on Windows Server 2008 for x64-based Systems Service Pack 2
  • microsoft .net framework 3.0Service Pack 2 on Windows Server 2008 for Itanium-Based Systems Service Pack 2 | Service Pack 2 on Windows Server 2008 for 32-bit Systems Service Pack 2 | Service Pack 2 on Windows Server 2008 for x64-based Systems Service Pack 2
  • microsoft .net framework 3.5Windows Server 2012 | Windows Server 2012 (Server Core installation) | Windows 8.1 for 32-bit systems | Windows 8.1 for x64-based systems | Windows Server 2012 R2 | Windows Server 2012 R2 (Server Core installation) | Windows 10 for 32-bit Systems | Windows 10 for x64-based Systems | Windows Server 2016 | Windows 10 Version 1607 for 32-bit Systems | Windows 10 Version 1607 for x64-based Systems | Windows Server 2016 (Server Core installation) | Windows 10 Version 1703 for 32-bit Systems | Windows 10 Version 1703 for x64-based Systems | Windows 10 Version 1709 for 32-bit Systems | Windows 10 Version 1709 for x64-based Systems | Windows 10 Version 1803 for 32-bit Systems | Windows 10 Version 1803 for x64-based Systems | Windows Server, version 1803 (Server Core Installation)
  • microsoft .net framework 3.5 and 4.7.2 on windows 10 version 1809 for 32-bit systemsunspecified

1 vendor · 64 products

References

1 links