HIGH
dotnet: Domain-spoofing attack in System.Uri
Published Mar 6, 2019
7.5
HIGHCVSS 3.0
EPSS 4.52%
Description
A vulnerability exists in certain .Net Framework API's and Visual Studio in the way they parse URL's, aka '.NET Framework and Visual Studio Spoofing Vulnerability'.
Affected products
-
- Version Service Pack 2 on Windows Server 2008 for Itanium-Based Systems Service Pack 2StatusaffectedConstraints-
- Version
-
- Version Service Pack 2 on Windows Server 2008 for 32-bit Systems Service Pack 2StatusaffectedConstraints-
- Version Service Pack 2 on Windows Server 2008 for Itanium-Based Systems Service Pack 2StatusaffectedConstraints-
- Version Service Pack 2 on Windows Server 2008 for x64-based Systems Service Pack 2StatusaffectedConstraints-
- Version
-
- Version Windows 10 Version 1607 for 32-bit SystemsStatusaffectedConstraints-
- Version Windows 10 Version 1607 for x64-based SystemsStatusaffectedConstraints-
- Version Windows 10 Version 1703 for 32-bit SystemsStatusaffectedConstraints-
- Version Windows 10 Version 1703 for x64-based SystemsStatusaffectedConstraints-
- Version Windows 10 Version 1709 for 32-bit SystemsStatusaffectedConstraints-
- Version Windows 10 Version 1709 for ARM64-based SystemsStatusaffectedConstraints-
- Version Windows 10 Version 1709 for x64-based SystemsStatusaffectedConstraints-
- Version Windows 10 Version 1803 for 32-bit SystemsStatusaffectedConstraints-
- Version Windows 10 Version 1803 for ARM64-based SystemsStatusaffectedConstraints-
- Version Windows 10 Version 1803 for x64-based SystemsStatusaffectedConstraints-
- Version Windows 10 Version 1809 for 32-bit SystemsStatusaffectedConstraints-
- Version Windows 10 Version 1809 for x64-based SystemsStatusaffectedConstraints-
- Version Windows 10 for 32-bit SystemsStatusaffectedConstraints-
- Version Windows 10 for x64-based SystemsStatusaffectedConstraints-
- Version Windows 8.1 for 32-bit systemsStatusaffectedConstraints-
- Version Windows 8.1 for x64-based systemsStatusaffectedConstraints-
- Version Windows Server 2012StatusaffectedConstraints-
- Version Windows Server 2012 (Server Core installation)StatusaffectedConstraints-
- Version Windows Server 2012 R2StatusaffectedConstraints-
- Version Windows Server 2012 R2 (Server Core installation)StatusaffectedConstraints-
- Version Windows Server 2016StatusaffectedConstraints-
- Version Windows Server 2019StatusaffectedConstraints-
- Version Windows Server 2019 (Server Core installation)StatusaffectedConstraints-
- Version Windows Server, version 1709 (Server Core Installation)StatusaffectedConstraints-
- Version Windows Server, version 1803 (Server Core Installation)StatusaffectedConstraints-
- Version
-
- Version Windows 7 for 32-bit Systems Service Pack 1StatusaffectedConstraints-
- Version Windows 7 for x64-based Systems Service Pack 1StatusaffectedConstraints-
- Version Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1StatusaffectedConstraints-
- Version Windows Server 2008 R2 for x64-based Systems Service Pack 1StatusaffectedConstraints-
- Version Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)StatusaffectedConstraints-
- Version
-
- Version Windows 7 for 32-bit Systems Service Pack 1StatusaffectedConstraints-
- Version Windows 7 for x64-based Systems Service Pack 1StatusaffectedConstraints-
- Version Windows 8.1 for 32-bit systemsStatusaffectedConstraints-
- Version Windows 8.1 for x64-based systemsStatusaffectedConstraints-
- Version Windows RT 8.1StatusaffectedConstraints-
- Version Windows Server 2008 R2 for x64-based Systems Service Pack 1StatusaffectedConstraints-
- Version Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)StatusaffectedConstraints-
- Version Windows Server 2008 for 32-bit Systems Service Pack 2StatusaffectedConstraints-
- Version Windows Server 2008 for x64-based Systems Service Pack 2StatusaffectedConstraints-
- Version Windows Server 2012StatusaffectedConstraints-
- Version Windows Server 2012 (Server Core installation)StatusaffectedConstraints-
- Version Windows Server 2012 R2StatusaffectedConstraints-
- Version Windows Server 2012 R2 (Server Core installation)StatusaffectedConstraints-
- Version
-
- Version Windows Server 2008 for 32-bit Systems Service Pack 2StatusaffectedConstraints-
- Version Windows Server 2008 for x64-based Systems Service Pack 2StatusaffectedConstraints-
- Version
-
- Version Windows 10 Version 1607 for 32-bit SystemsStatusaffectedConstraints-
- Version Windows 10 Version 1607 for x64-based SystemsStatusaffectedConstraints-
- Version Windows Server 2016StatusaffectedConstraints-
- Version Windows Server 2016 (Server Core installation)StatusaffectedConstraints-
- Version
-
- Version Windows 10 for 32-bit SystemsStatusaffectedConstraints-
- Version Windows 10 for x64-based SystemsStatusaffectedConstraints-
- Version
-
- Version Windows 7 for 32-bit Systems Service Pack 1StatusaffectedConstraints-
- Version Windows 7 for x64-based Systems Service Pack 1StatusaffectedConstraints-
- Version Windows 8.1 for 32-bit systemsStatusaffectedConstraints-
- Version Windows 8.1 for x64-based systemsStatusaffectedConstraints-
- Version Windows RT 8.1StatusaffectedConstraints-
- Version Windows Server 2008 R2 for x64-based Systems Service Pack 1StatusaffectedConstraints-
- Version Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)StatusaffectedConstraints-
- Version Windows Server 2012StatusaffectedConstraints-
- Version Windows Server 2012 (Server Core installation)StatusaffectedConstraints-
- Version Windows Server 2012 R2StatusaffectedConstraints-
- Version Windows Server 2012 R2 (Server Core installation)StatusaffectedConstraints-
- Version
-
- Version Windows 10 Version 1709 for 32-bit SystemsStatusaffectedConstraints-
- Version Windows 10 Version 1709 for ARM64-based SystemsStatusaffectedConstraints-
- Version Windows 10 Version 1709 for x64-based SystemsStatusaffectedConstraints-
- Version Windows Server, version 1709 (Server Core Installation)StatusaffectedConstraints-
- Version
-
- Version Windows 10 Version 1803 for 32-bit SystemsStatusaffectedConstraints-
- Version Windows 10 Version 1803 for ARM64-based SystemsStatusaffectedConstraints-
- Version Windows 10 Version 1803 for x64-based SystemsStatusaffectedConstraints-
- Version Windows 10 Version 1809 for 32-bit SystemsStatusaffectedConstraints-
- Version Windows 10 Version 1809 for x64-based SystemsStatusaffectedConstraints-
- Version Windows Server 2019StatusaffectedConstraints-
- Version Windows Server 2019 (Server Core installation)StatusaffectedConstraints-
- Version Windows Server, version 1803 (Server Core Installation)StatusaffectedConstraints-
- Version
-
- Version Windows 10 Version 1703 for 32-bit SystemsStatusaffectedConstraints-
- Version Windows 10 Version 1703 for x64-based SystemsStatusaffectedConstraints-
- Version
-
- Version 2017StatusaffectedConstraints-
- Version
-
- Version version 15.9StatusaffectedConstraints-
- Version
-
- Version 6.1StatusaffectedConstraints-
- Version 6.2StatusaffectedConstraints-
- Version
-
- Version 1StatusaffectedConstraints-
- Version 2.1StatusaffectedConstraints-
- Version 2.2StatusaffectedConstraints-
- 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 | Microsoft .NET Framework 2.0 | n/a |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Microsoft | Microsoft .NET Framework 3.0 | n/a |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Microsoft | Microsoft .NET Framework 3.5 | n/a |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Microsoft | Microsoft .NET Framework 3.5.1 | n/a |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Microsoft | Microsoft .NET Framework 4.5.2 | n/a |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Microsoft | Microsoft .NET Framework 4.6 | n/a |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Microsoft | Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 | n/a |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Microsoft | Microsoft .NET Framework 4.6/4.6.1/4.6.2 | n/a |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Microsoft | Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 | n/a |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Microsoft | Microsoft .NET Framework 4.7.1/4.7.2 | n/a |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Microsoft | Microsoft .NET Framework 4.7.2 | n/a |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Microsoft | Microsoft .NET Framework 4.7/4.7.1/4.7.2 | n/a |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Microsoft | Microsoft Visual Studio | n/a |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Microsoft | Microsoft Visual Studio 2017 | n/a |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Microsoft | PowerShell Core | n/a |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Microsoft | n/a | n/a |
|
Configuration 1
OR
- 1.0
- 2.1
- 2.2
- 6.0
- 6.1
- n/a
- 15.9
Configuration 2
AND
OR
- 2.0
- 3.0
Running on/with
- n/a
Configuration 3
AND
- 3.5
Running on/with
OR
- 1607
- 1703
- 1709
- 1803
- 1809
- n/a
- n/a
- r2
- n/a
- 1709
- 1803
- n/a
Configuration 4
AND
- 3.5.1
Running on/with
OR
- n/a
- r2
- r2
Configuration 5
AND
- 4.5.2
Running on/with
OR
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- r2
Configuration 6
AND
- 4.6
Running on/with
- n/a
Configuration 7
AND
OR
- 4.6.2
- 4.7
- 4.7.1
- 4.7.2
Running on/with
OR
- 1607
- n/a
Configuration 8
AND
OR
- 4.6
- 4.6.1
- 4.6.2
Running on/with
- n/a
Configuration 9
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
- n/a
- n/a
- r2
Configuration 10
AND
OR
- 4.7.1
- 4.7.2
Running on/with
OR
- 1709
- 1709
Configuration 11
AND
- 4.7.2
Running on/with
OR
- 1803
- 1809
- 1803
- n/a
Configuration 12
AND
OR
- 4.7
- 4.7.1
- 4.7.2
Running on/with
- 1703
No data.
.NET Core on Red Hat Enterprise Linux
rh-dotnet21-0:2.1-7.el7
Fixed · RHSA-2019:0349
.NET Core on Red Hat Enterprise Linux
rh-dotnet21-dotnet-0:2.1.504-1.el7
Fixed · RHSA-2019:0349
.NET Core on Red Hat Enterprise Linux
rh-dotnet22-0:2.2-3.el7
Fixed · RHSA-2019:0349
.NET Core on Red Hat Enterprise Linux
rh-dotnet22-dotnet-0:2.2.104-2.el7
Fixed · RHSA-2019:0349
.NET Core on Red Hat Enterprise Linux
rh-dotnetcore10-dotnetcore-0:1.0.14-1.el7
Fixed · RHSA-2019:0349
.NET Core on Red Hat Enterprise Linux
rh-dotnetcore11-dotnetcore-0:1.1.11-2.el7
Fixed · RHSA-2019:0349
.NET Core 1.0 on Red Hat Enterprise Linux
rh-dotnetcore10
Will not fix
.NET Core 1.1 on Red Hat Enterprise Linux
rh-dotnetcore11
Will not fix
Red Hat Enterprise Linux 8
dotnet
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| .NET Core on Red Hat Enterprise Linux | rh-dotnet21-0:2.1-7.el7 | Fixed | RHSA-2019:0349 |
| .NET Core on Red Hat Enterprise Linux | rh-dotnet21-dotnet-0:2.1.504-1.el7 | Fixed | RHSA-2019:0349 |
| .NET Core on Red Hat Enterprise Linux | rh-dotnet22-0:2.2-3.el7 | Fixed | RHSA-2019:0349 |
| .NET Core on Red Hat Enterprise Linux | rh-dotnet22-dotnet-0:2.2.104-2.el7 | Fixed | RHSA-2019:0349 |
| .NET Core on Red Hat Enterprise Linux | rh-dotnetcore10-dotnetcore-0:1.0.14-1.el7 | Fixed | RHSA-2019:0349 |
| .NET Core on Red Hat Enterprise Linux | rh-dotnetcore11-dotnetcore-0:1.1.11-2.el7 | Fixed | RHSA-2019:0349 |
| .NET Core 1.0 on Red Hat Enterprise Linux | rh-dotnetcore10 | Will not fix | n/a |
| .NET Core 1.1 on Red Hat Enterprise Linux | rh-dotnetcore11 | Will not fix | n/a |
| Red Hat Enterprise Linux 8 | dotnet | Not affected | 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.
5.9 MEDIUM NVD
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact High
Availability Impact None
1 other source (Red Hat) ▾
7.5 HIGH Red Hat
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
4.3 MEDIUM NVD
AV:N/AC:M/Au:N/C:N/I:P/A:N
Access Vector Network
Access Complexity Medium
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.
4.52% 0.04518
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.04518
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 (27 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 4.52% (0.04518) | 91.22th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.52% (0.04518) | 90.27th | v5 (v2026.06.15) |
| Feb 28, 2026 | 8.02% (0.08017) | 91.94th | v4 (v2025.03.14) |
| Jun 28, 2025 | 5.53% (0.05530) | 89.78th | v4 (v2025.03.14) |
| Mar 30, 2025 | 2.84% (0.02841) | 84.96th | v4 (v2025.03.14) |
| Mar 29, 2025 | 16.19% (0.16189) | 91.41th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.84% (0.02841) | 85.28th | v4 (v2025.03.14) |
| Dec 19, 2024 | 1.43% (0.01426) | 86.29th | v3 (v2023.03.01) |
| Dec 12, 2024 | 0.21% (0.00206) | 59.51th | v3 (v2023.03.01) |
| Feb 28, 2024 | 0.28% (0.00282) | 67.75th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.35% (0.00346) | 70.86th | v3 (v2023.03.01) |
| Jan 9, 2024 | 0.35% (0.00346) | 68.64th | v3 (v2023.03.01) |
| Aug 1, 2023 | 0.37% (0.00366) | 68.77th | v3 (v2023.03.01) |
| Jul 17, 2023 | 0.37% (0.00373) | 69.00th | v3 (v2023.03.01) |
| May 15, 2023 | 0.37% (0.00366) | 68.30th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.30% (0.00302) | 64.77th | v3 (v2023.03.01) |
| Mar 6, 2023 | 5.85% (0.05853) | 90.48th | v2 (v2022.01.01) |
| Jan 16, 2023 | 5.85% (0.05853) | 90.08th | v2 (v2022.01.01) |
| Dec 10, 2022 | 5.27% (0.05274) | 89.55th | v2 (v2022.01.01) |
| Aug 30, 2022 | 4.79% (0.04794) | 88.71th | v2 (v2022.01.01) |
| Apr 1, 2022 | 4.00% (0.04004) | 84.54th | v2 (v2022.01.01) |
| Feb 11, 2022 | 15.37% (0.15370) | 92.54th | v2 (v2022.01.01) |
| Feb 4, 2022 | 16.78% (0.16784) | 92.97th | v2 (v2022.01.01) |
| Feb 3, 2022 | 30.10% (0.30098) | 96.74th | v1 |
| Jan 6, 2022 | 30.10% (0.30098) | 96.70th | 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/106890 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2019:0349 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2019-0657 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1673891 Issue Tracking
- https://github.com/advisories/GHSA-x5qj-9vmx-7g6g Advisory
- https://github.com/dotnet/announcements/issues/97
- https://github.com/github/advisory-database/issues/302
- https://nvd.nist.gov/vuln/detail/CVE-2019-0657
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0657 x_refsource_CONFIRMPatchVendor Advisory
- https://www.cve.org/CVERecord?id=CVE-2019-0657
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/106890 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/errata/RHSA-2019:0349 | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| https://access.redhat.com/security/cve/CVE-2019-0657 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1673891 | Issue Tracking | |
| https://github.com/advisories/GHSA-x5qj-9vmx-7g6g | Advisory | |
| https://github.com/dotnet/announcements/issues/97 | ||
| https://github.com/github/advisory-database/issues/302 | ||
| https://nvd.nist.gov/vuln/detail/CVE-2019-0657 | ||
| https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0657 | x_refsource_CONFIRMPatchVendor Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2019-0657 |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner microsoft
Published Mar 6, 2019
Updated Aug 4, 2024
Reserved Nov 26, 2018
Link CVE-2019-0657
CISA Vulnrichment
GHSA-X5QJ-9VMX-7G6G Updated n/a