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CVE-2018-0786

25
FAUCET Score

CVE-2018-0786 is a security feature bypass vulnerability affecting multiple versions of Microsoft .NET Framework, .NET Core, and PowerShell Core, stemming from improper certificate validation. This vulnerability allows an attacker to bypass security features, potentially compromising the integrity of affected systems. With a CVSS score of 7.5 (HIGH), this vulnerability is remotely exploitable with low attack complexity and can lead to high impact on integrity without requiring user interaction. The EPSS score is low, indicating a low probability of exploitation in the wild. Currently, there is no public exploit code available in Metasploit, Nuclei, or ExploitDB, and it is not listed in CISA's Known Exploited Vulnerabilities Catalog. While there are a few community discussions and media mentions, these do not indicate active exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
1.0CPE matchmatch criteria
cpe:2.3:a:microsoft:.net_core:1.0:*:*:*:*:*:*:*
2.0CPE matchmatch criteria
cpe:2.3:a:microsoft:.net_core:2.0:*:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:a:microsoft:powershell_core:6.0:*:*:*:*:*:*:*
2.0CPE matchmatch criteria
cpe:2.3:a:microsoft:.net_framework:2.0:sp2:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:a:microsoft:.net_framework:3.0:sp2:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
3.69%
Probability of exploitation in next 30 days
EPSS Percentile
88.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0369 is in the 80th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (164)

microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 4.6.2/4.7 on Windows Server 2016 (Server Core installation)
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 3.5 on Windows Server 2012 R2 (Server Core installation)
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 3.5.1 on Windows 7 for 32-bit Systems Service Pack 1
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 3.5.1 on Windows 7 for x64-based Systems Service Pack 1
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 3.5.1 on Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 3.5.1 on Windows Server 2008 R2 for x64-based Systems Service Pack 1
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 3.5.1 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 4.5.2 on Windows 7 for 32-bit Systems Service Pack 1
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 4.5.2 on Windows 7 for x64-based Systems Service Pack 1
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 4.5.2 on Windows 8.1 for 32-bit systems
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 4.5.2 on Windows 8.1 for x64-based systems
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 4.5.2 on Windows RT 8.1
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 4.5.2 on Windows Server 2008 for 32-bit Systems Service Pack 2
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 4.5.2 on Windows Server 2008 for x64-based Systems Service Pack 2
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 4.5.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 4.5.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 4.5.2 on Windows Server 2012
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 4.5.2 on Windows Server 2012 (Server Core installation)
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 4.5.2 on Windows Server 2012 R2
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 4.5.2 on Windows Server 2012 R2 (Server Core installation)
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 4.6.2/4.7 on Windows 10 Version 1607 for 32-bit Systems
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 4.6.2/4.7 on Windows 10 Version 1607 for x64-based Systems
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 4.6.2/4.7 on Windows Server 2016
View patch
microsoftpatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: 11451-10047
View patch
microsoftpatch availablevia msrc
Product: 11451-10048
View patch
microsoftpatch availablevia msrc
Product: 11451-10481
View patch
microsoftpatch availablevia msrc
Product: 11451-10482
View patch
microsoftpatch availablevia msrc
Product: 11451-10484
microsoftpatch availablevia msrc
Product: 11451-10051
View patch
microsoftpatch availablevia msrc
Product: 11451-10049
View patch
microsoftpatch availablevia msrc
Product: 11451-10378
View patch
microsoftpatch availablevia msrc
Product: 11451-10379
View patch
microsoftpatch availablevia msrc
Product: 11451-10483
View patch
microsoftpatch availablevia msrc
Product: 11451-10543
View patch
microsoftpatch availablevia msrc
Product: 11483-11453
View patch
microsoftpatch availablevia msrc
Product: 11483-11454
View patch
microsoftpatch availablevia msrc
Product: 11483-11466
View patch
microsoftpatch availablevia msrc
Product: 2472-11453
View patch
microsoftpatch availablevia msrc
Product: 2472-11454
View patch
microsoftpatch availablevia msrc
Product: 2472-11466
View patch
microsoftpatch availablevia msrc
Product: 10957-10951
View patch
microsoftpatch availablevia msrc
Product: 10957-10952
View patch
microsoftpatch availablevia msrc
Product: 10728-10729
View patch
microsoftpatch availablevia msrc
Product: 10728-10735
View patch
microsoftpatch availablevia msrc
Product: 10728-9312
View patch
microsoftpatch availablevia msrc
Product: 10728-9318
View patch
microsoftpatch availablevia msrc
Product: 10808-10789
View patch
microsoftpatch availablevia msrc
Product: 10808-10788
View patch
microsoftpatch availablevia msrc
Product: 9292-9312
View patch
microsoftpatch availablevia msrc
Product: 9292-9311
View patch
microsoftpatch availablevia msrc
Product: 9292-9318
View patch
microsoftpatch availablevia msrc
Product: 9195-9312
View patch
microsoftpatch availablevia msrc
Product: 9195-9311
View patch
microsoftpatch availablevia msrc
Product: 9195-9318
View patch
microsoftpatch availablevia msrc
Product: 2472-10951
View patch
microsoftpatch availablevia msrc
Product: 2472-10952
View patch
microsoftpatch availablevia msrc
Product: 2472-10729
View patch
microsoftpatch availablevia msrc
Product: 2472-10735
View patch
microsoftpatch availablevia msrc
Product: 2472-10789
View patch
microsoftpatch availablevia msrc
Product: 2472-10788
View patch
microsoftpatch availablevia msrc
Product: 2472-10852
View patch
microsoftpatch availablevia msrc
Product: 2472-10853
View patch
microsoftpatch availablevia msrc
Product: 2472-10816
View patch
microsoftpatch availablevia msrc
Product: 2472-10855
View patch
microsoftpatch availablevia msrc
Product: 2472-10481
View patch
microsoftpatch availablevia msrc
Product: 2472-10482
View patch
microsoftpatch availablevia msrc
Product: 2472-10378
View patch
microsoftpatch availablevia msrc
Product: 2472-10379
View patch
microsoftpatch availablevia msrc
Product: 2472-10483
View patch
microsoftpatch availablevia msrc
Product: 2472-10543
View patch
microsoftpatch availablevia msrc
Product: 9495-10047
View patch
microsoftpatch availablevia msrc
Product: 9495-10048
View patch
microsoftpatch availablevia msrc
Product: 9495-10050
View patch
microsoftpatch availablevia msrc
Product: 9495-10051
View patch
microsoftpatch availablevia msrc
Product: 9495-10049
View patch
microsoftpatch availablevia msrc
Product: 10636-10047
View patch
microsoftpatch availablevia msrc
Product: 10636-10048
View patch
microsoftpatch availablevia msrc
Product: 10636-10481
View patch
microsoftpatch availablevia msrc
Product: 10636-10482
View patch
microsoftpatch availablevia msrc
Product: 10636-10484
microsoftpatch availablevia msrc
Product: 10636-9312
View patch
microsoftpatch availablevia msrc
Product: 10636-9318
View patch
microsoftpatch availablevia msrc
Product: 10636-10051
View patch
microsoftpatch availablevia msrc
Product: 10636-10049
View patch
microsoftpatch availablevia msrc
Product: 10636-10378
View patch
microsoftpatch availablevia msrc
Product: 10636-10379
View patch
microsoftpatch availablevia msrc
Product: 10636-10483
View patch
microsoftpatch availablevia msrc
Product: 10636-10543
View patch
microsoftpatch availablevia msrc
Product: 11437-10852
View patch
microsoftpatch availablevia msrc
Product: 11437-10853
View patch
microsoftpatch availablevia msrc
Product: 11437-10816
View patch
microsoftpatch availablevia msrc
Product: 11437-10855
View patch
microsoftpatch availablevia msrc
Product: .NET Core 1.0
View patch
microsoftpatch availablevia msrc
Product: .NET Core 2.0
View patch
microsoftpatch availablevia msrc
Product: PowerShell Core 6.0.0
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7 on Windows 7 for 32-bit Systems Service Pack 1
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7 on Windows 7 for x64-based Systems Service Pack 1
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7 on Windows 8.1 for 32-bit systems
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7 on Windows 8.1 for x64-based systems
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7 on Windows RT 8.1
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7 on Windows Server 2008 R2 for x64-based Systems Service Pack 1
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7 on Windows Server 2012
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7 on Windows Server 2012 (Server Core installation)
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7 on Windows Server 2012 R2
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7 on Windows Server 2012 R2 (Server Core installation)
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 4.7.1 on Windows 10 Version 1709 for 32-bit Systems
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 4.7.1 on Windows 10 Version 1709 for x64-based Systems
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 4.7.1 on Windows Server, version 1709 (Server Core Installation)
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 3.5 on Windows 10 Version 1709 for 32-bit Systems
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 3.5 on Windows 10 Version 1709 for x64-based Systems
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 3.5 on Windows Server, version 1709 (Server Core Installation)
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 4.7 on Windows 10 Version 1703 for 32-bit Systems
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 4.7 on Windows 10 Version 1703 for x64-based Systems
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 4.6 on Windows 10 for 32-bit Systems
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 4.6 on Windows 10 for x64-based Systems
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 4.6 on Windows Server 2008 for 32-bit Systems Service Pack 2
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 4.6 on Windows Server 2008 for x64-based Systems Service Pack 2
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 4.6.1 on Windows 10 Version 1511 for 32-bit Systems
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 4.6.1 on Windows 10 Version 1511 for x64-based Systems
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 2.0 Service Pack 2 on Windows Server 2008 for 32-bit Systems Service Pack 2
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 2.0 Service Pack 2 on Windows Server 2008 for Itanium-Based Systems Service Pack 2
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 2.0 Service Pack 2 on Windows Server 2008 for x64-based Systems Service Pack 2
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 3.0 Service Pack 2 on Windows Server 2008 for 32-bit Systems Service Pack 2
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 3.0 Service Pack 2 on Windows Server 2008 for Itanium-Based Systems Service Pack 2
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 3.0 Service Pack 2 on Windows Server 2008 for x64-based Systems Service Pack 2
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 3.5 on Windows 10 Version 1703 for 32-bit Systems
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 3.5 on Windows 10 Version 1703 for x64-based Systems
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 3.5 on Windows 10 for 32-bit Systems
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 3.5 on Windows 10 for x64-based Systems
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 3.5 on Windows 10 Version 1511 for 32-bit Systems
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 3.5 on Windows 10 Version 1511 for x64-based Systems
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 3.5 on Windows 10 Version 1607 for 32-bit Systems
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 3.5 on Windows 10 Version 1607 for x64-based Systems
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 3.5 on Windows Server 2016
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 3.5 on Windows Server 2016 (Server Core installation)
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 3.5 on Windows 8.1 for 32-bit systems
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 3.5 on Windows 8.1 for x64-based systems
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 3.5 on Windows Server 2012
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 3.5 on Windows Server 2012 (Server Core installation)
View patch
microsoftpatch availablevia msrc
Product: Microsoft .NET Framework 3.5 on Windows Server 2012 R2
View patch
nugetpatch availablevia ghsa
Product: Microsoft.NETCore.UniversalWindowsPlatformFixed in: 5.3.5
nugetpatch availablevia ghsa
Product: Microsoft.NETCore.UniversalWindowsPlatformFixed in: 5.4.2
nugetpatch availablevia ghsa
Product: Microsoft.NETCore.UniversalWindowsPlatformFixed in: 6.0.6
nugetpatch availablevia ghsa
Product: System.ServiceModel.PrimitivesFixed in: 4.4.1
nugetpatch availablevia ghsa
Product: System.ServiceModel.PrimitivesFixed in: 4.3.1
nugetpatch availablevia ghsa
Product: System.ServiceModel.PrimitivesFixed in: 4.1.1
nugetpatch availablevia ghsa
Product: System.ServiceModel.HttpFixed in: 4.4.1
nugetpatch availablevia ghsa
Product: System.ServiceModel.HttpFixed in: 4.3.1
nugetpatch availablevia ghsa
Product: System.ServiceModel.HttpFixed in: 4.1.1
nugetpatch availablevia ghsa
Product: System.ServiceModel.NetTcpFixed in: 4.4.1
nugetpatch availablevia ghsa
Product: System.ServiceModel.NetTcpFixed in: 4.3.1
nugetpatch availablevia ghsa
Product: System.ServiceModel.NetTcpFixed in: 4.1.1
nugetpatch availablevia ghsa
Product: System.ServiceModel.DuplexFixed in: 4.4.1
nugetpatch availablevia ghsa
Product: System.ServiceModel.DuplexFixed in: 4.3.1
nugetpatch availablevia ghsa
Product: System.ServiceModel.SecurityFixed in: 4.4.1
nugetpatch availablevia ghsa
Product: System.ServiceModel.SecurityFixed in: 4.3.1
nugetpatch availablevia ghsa
Product: System.Private.ServiceModelFixed in: 4.4.1
nugetpatch availablevia ghsa
Product: System.Private.ServiceModelFixed in: 4.3.1
nugetpatch availablevia ghsa
Product: System.Private.ServiceModelFixed in: 4.1.1
nugetpatch availablevia ghsa
Product: System.ServiceModel.SecurityFixed in: 4.0.2
nugetpatch availablevia ghsa
Product: System.ServiceModel.DuplexFixed in: 4.0.2
nugetpatch availablevia ghsa
Product: Microsoft.NETCore.UniversalWindowsPlatformFixed in: 5.2.4

Vendor Advisories (3)

nugetGHSA-jc8g-xhw5-6x46high

Improper Certificate Validation in Microsoft .NET Framework components

Oct 16, 2018
microsoft2018-Jan/CVE-2018-0786Important

.NET Security Feature Bypass Vulnerability

Jan 9, 2018
redhatCVE-2018-0786Moderate

ASP.NET: Incorrect certificate validation can allow attackers to bypass security checks

Jan 8, 2018

References

portal.msrc.microsoft.com / en-US/security-guidance/advisory/CVE-2018-0786
PatchVendor Advisory
securityfocus.com / bid/102380
Third Party AdvisoryVDB Entry
securitytracker.com / id/1040152
Third Party AdvisoryVDB Entry