MEDIUM
Core: incorrect certificates validation
Published Jul 11, 2018
6.5
MEDIUMCVSS 3.0
EPSS 0.75%
Description
A security feature bypass vulnerability exists when Microsoft .NET Framework components do not correctly validate certificates, aka ".NET Framework Security Feature Bypass Vulnerability." This affects .NET Framework 4.7.2, Microsoft .NET Framework 3.0, Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2, ASP.NET Core 1.1, Microsoft .NET Framework 4.5.2, ASP.NET Core 2.0, ASP.NET Core 1.0, .NET Core 1.1, Microsoft .NET Framework 3.5, Microsoft .NET Framework 3.5.1, Microsoft .NET Framework 4.6/4.6.1/4.6.2, .NET Core 1.0, .NET Core 2.0, Microsoft .NET Framework 4.6, Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2, Microsoft .NET Framework 4.7.2.
Affected products
-
- Version 1.0StatusaffectedConstraints-
- Version 1.1StatusaffectedConstraints-
- Version 2.0StatusaffectedConstraints-
- Version
-
- Version 3.0 Service Pack 2 on Windows Server 2008 for 32-bit Systems Service Pack 2StatusaffectedConstraints-
- Version 3.0 Service Pack 2 on Windows Server 2008 for Itanium-Based Systems Service Pack 2StatusaffectedConstraints-
- Version 3.0 Service Pack 2 on Windows Server 2008 for x64-based Systems Service Pack 2StatusaffectedConstraints-
- Version 3.5 on Windows 10 Version 1607 for 32-bit SystemsStatusaffectedConstraints-
- Version 3.5 on Windows 10 Version 1607 for x64-based SystemsStatusaffectedConstraints-
- Version 3.5 on Windows 10 Version 1703 for 32-bit SystemsStatusaffectedConstraints-
- Version 3.5 on Windows 10 Version 1703 for x64-based SystemsStatusaffectedConstraints-
- Version 3.5 on Windows 10 Version 1709 for 32-bit SystemsStatusaffectedConstraints-
- Version 3.5 on Windows 10 Version 1709 for x64-based SystemsStatusaffectedConstraints-
- Version 3.5 on Windows 10 Version 1803 for 32-bit SystemsStatusaffectedConstraints-
- Version 3.5 on Windows 10 Version 1803 for x64-based SystemsStatusaffectedConstraints-
- Version 3.5 on Windows 10 for 32-bit SystemsStatusaffectedConstraints-
- Version 3.5 on Windows 10 for x64-based SystemsStatusaffectedConstraints-
- Version 3.5 on Windows 8.1 for 32-bit systemsStatusaffectedConstraints-
- Version 3.5 on Windows 8.1 for x64-based systemsStatusaffectedConstraints-
- Version 3.5 on Windows Server 2012StatusaffectedConstraints-
- Version 3.5 on Windows Server 2012 (Server Core installation)StatusaffectedConstraints-
- Version 3.5 on Windows Server 2012 R2StatusaffectedConstraints-
- Version 3.5 on Windows Server 2012 R2 (Server Core installation)StatusaffectedConstraints-
- Version 3.5 on Windows Server 2016StatusaffectedConstraints-
- Version 3.5 on Windows Server 2016 (Server Core installation)StatusaffectedConstraints-
- Version 3.5 on Windows Server, version 1709 (Server Core Installation)StatusaffectedConstraints-
- Version 3.5 on Windows Server, version 1803 (Server Core Installation)StatusaffectedConstraints-
- Version 3.5.1 on Windows 7 for 32-bit Systems Service Pack 1StatusaffectedConstraints-
- Version 3.5.1 on Windows 7 for x64-based Systems Service Pack 1StatusaffectedConstraints-
- Version 3.5.1 on Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1StatusaffectedConstraints-
- Version 3.5.1 on Windows Server 2008 R2 for x64-based Systems Service Pack 1StatusaffectedConstraints-
- Version 3.5.1 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)StatusaffectedConstraints-
- Version 4.5.2 on Windows 7 for 32-bit Systems Service Pack 1StatusaffectedConstraints-
- Version 4.5.2 on Windows 7 for x64-based Systems Service Pack 1StatusaffectedConstraints-
- Version 4.5.2 on Windows 8.1 for 32-bit systemsStatusaffectedConstraints-
- Version 4.5.2 on Windows 8.1 for x64-based systemsStatusaffectedConstraints-
- Version 4.5.2 on Windows RT 8.1StatusaffectedConstraints-
- Version 4.5.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1StatusaffectedConstraints-
- Version 4.5.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)StatusaffectedConstraints-
- Version 4.5.2 on Windows Server 2008 for 32-bit Systems Service Pack 2StatusaffectedConstraints-
- Version 4.5.2 on Windows Server 2008 for x64-based Systems Service Pack 2StatusaffectedConstraints-
- Version 4.5.2 on Windows Server 2012StatusaffectedConstraints-
- Version 4.5.2 on Windows Server 2012 (Server Core installation)StatusaffectedConstraints-
- Version 4.5.2 on Windows Server 2012 R2StatusaffectedConstraints-
- Version 4.5.2 on Windows Server 2012 R2 (Server Core installation)StatusaffectedConstraints-
- Version 4.6 on Windows Server 2008 for 32-bit Systems Service Pack 2StatusaffectedConstraints-
- Version 4.6 on Windows Server 2008 for x64-based Systems Service Pack 2StatusaffectedConstraints-
- Version 4.6.2/4.7/4.7.1/4.7.2 on Windows 10 Version 1607 for 32-bit SystemsStatusaffectedConstraints-
- Version 4.6.2/4.7/4.7.1/4.7.2 on Windows 10 Version 1607 for x64-based SystemsStatusaffectedConstraints-
- Version 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016StatusaffectedConstraints-
- Version 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016 (Server Core installation)StatusaffectedConstraints-
- Version 4.6/4.6.1/4.6.2 on Windows 10 for 32-bit SystemsStatusaffectedConstraints-
- Version 4.6/4.6.1/4.6.2 on Windows 10 for x64-based SystemsStatusaffectedConstraints-
- Version 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows 7 for 32-bit Systems Service Pack 1StatusaffectedConstraints-
- Version 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows 7 for x64-based Systems Service Pack 1StatusaffectedConstraints-
- Version 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows 8.1 for 32-bit systemsStatusaffectedConstraints-
- Version 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows 8.1 for x64-based systemsStatusaffectedConstraints-
- Version 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows RT 8.1StatusaffectedConstraints-
- Version 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1StatusaffectedConstraints-
- Version 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)StatusaffectedConstraints-
- Version 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows Server 2012StatusaffectedConstraints-
- Version 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows Server 2012 (Server Core installation)StatusaffectedConstraints-
- Version 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows Server 2012 R2StatusaffectedConstraints-
- Version 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows Server 2012 R2 (Server Core installation)StatusaffectedConstraints-
- Version 4.7.2 on Windows 10 Version 1803 for 32-bit SystemsStatusaffectedConstraints-
- Version 4.7.2 on Windows 10 Version 1803 for x64-based SystemsStatusaffectedConstraints-
- Version 4.7.2 on Windows Server, version 1803 (Server Core Installation)StatusaffectedConstraints-
- Version
-
- Version 1.0StatusaffectedConstraints-
- Version 1.1StatusaffectedConstraints-
- Version 2.0StatusaffectedConstraints-
- Version 4.7.2 Developer PackStatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Microsoft | ASP.NET Core | n/a |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Microsoft | Microsoft .NET Framework | n/a |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Microsoft | n/a | n/a |
|
Configuration 1
AND
- 3.0
Running on/with
- n/a
Configuration 2
AND
- 3.5
Running on/with
OR
- n/a
- 1607
- 1703
- 1709
- 1803
- n/a
- 1803
- n/a
- r2
- n/a
Configuration 3
AND
- 3.5.1
Running on/with
OR
- n/a
- r2
Configuration 4
AND
- 4.5.2
Running on/with
OR
- n/a
- n/a
- n/a
- n/a
- r2
- n/a
- r2
Configuration 5
AND
- 4.6
Running on/with
- n/a
Configuration 6
AND
OR
- 4.6.2
- 4.7
- 4.7.1
- 4.7.2
Running on/with
OR
- 1607
- n/a
Configuration 7
AND
OR
- 4.6
- 4.6.1
- 4.6.2
Running on/with
- n/a
Configuration 8
AND
OR
- 4.6
- 4.6.1
- 4.6.2
- 4.7
- 4.7.1
- 4.7.2
Running on/with
OR
- n/a
- n/a
- n/a
- r2
- n/a
- r2
Configuration 9
AND
- 4.7.2
Running on/with
OR
- 1803
- 1803
Configuration 10
OR
- 6.0
- 6.1
Configuration 11
Configuration 12
- 4.7.2
Configuration 13
OR
- 1.0
- 1.1
- 2.0
No data.
.NET Core 1.0 on Red Hat Enterprise Linux
rh-dotnetcore10-dotnetcore
Will not fix
.NET Core 1.1 on Red Hat Enterprise Linux
rh-dotnetcore11-dotnetcore
Will not fix
.NET Core 2.0 on Red Hat Enterprise Linux
rh-dotnet20-dotnet
Will not fix
.NET Core 2.1 on Red Hat Enterprise Linux
rh-dotnet21-dotnet
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| .NET Core 1.0 on Red Hat Enterprise Linux | rh-dotnetcore10-dotnetcore | Will not fix | n/a |
| .NET Core 1.1 on Red Hat Enterprise Linux | rh-dotnetcore11-dotnetcore | Will not fix | n/a |
| .NET Core 2.0 on Red Hat Enterprise Linux | rh-dotnet20-dotnet | Will not fix | n/a |
| .NET Core 2.1 on Red Hat Enterprise Linux | rh-dotnet21-dotnet | Will not fix | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
5.5 MEDIUM NVD
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact High
Availability Impact None
1 other source (Red Hat) ▾
6.5 MEDIUM Red Hat
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact Low
Integrity Impact Low
Availability Impact None
2.1 LOW NVD
AV:L/AC:L/Au:N/C:N/I:P/A:N
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact Partial
Availability Impact None
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
0.75% 0.00748
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
EPSS probability 0.00748
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (15 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 0.75% (0.00748) | 53.24th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.69% (0.00691) | 47.81th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.37% (0.00367) | 56.55th | v4 (v2025.03.14) |
| Dec 17, 2024 | 2.88% (0.02884) | 90.51th | v3 (v2023.03.01) |
| Apr 25, 2024 | 0.21% (0.00211) | 58.59th | v3 (v2023.03.01) |
| Feb 28, 2024 | 0.10% (0.00104) | 41.33th | v3 (v2023.03.01) |
| Jul 4, 2023 | 0.07% (0.00074) | 30.36th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.06% (0.00059) | 22.88th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.42% (0.01418) | 73.14th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.42% (0.01418) | 71.15th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.42% (0.01418) | 50.43th | v2 (v2022.01.01) |
| Feb 3, 2022 | 8.76% (0.08756) | 86.41th | v1 |
| Jan 6, 2022 | 8.76% (0.08756) | 86.25th | v1 |
| Sep 1, 2021 | 8.76% (0.08756) | 93.70th | v1 |
| Apr 14, 2021 | 8.76% (0.08756) | 0.00th | v1 |
Weaknesses (1)
References (10)
- http://www.securityfocus.com/bid/104664 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1041257 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2018-8356 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1600323 Issue Tracking
- https://github.com/advisories/GHSA-p9wx-v264-q34p Advisory
- https://github.com/dotnet/announcements/issues/73
- https://github.com/github/advisory-database/issues/302
- https://nvd.nist.gov/vuln/detail/CVE-2018-8356
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8356 x_refsource_CONFIRMPatchVendor Advisory
- https://www.cve.org/CVERecord?id=CVE-2018-8356
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/104664 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1041257 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/security/cve/CVE-2018-8356 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1600323 | Issue Tracking | |
| https://github.com/advisories/GHSA-p9wx-v264-q34p | Advisory | |
| https://github.com/dotnet/announcements/issues/73 | ||
| https://github.com/github/advisory-database/issues/302 | ||
| https://nvd.nist.gov/vuln/detail/CVE-2018-8356 | ||
| https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8356 | x_refsource_CONFIRMPatchVendor Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2018-8356 |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner microsoft
Published Jul 11, 2018
Updated Aug 5, 2024
Reserved Mar 14, 2018
Link CVE-2018-8356
CISA Vulnrichment
GHSA-P9WX-V264-Q34P Updated n/a