.NET Framework Spoofing Vulnerability
Priority HIGH 66CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Microsoft. Impact type from Microsoft.
Summary
.NET Framework Spoofing Vulnerability
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01504 74th percentileScored 2026-11-07
Fix Fixed Microsoft: 17 updates
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Microsoft | Microsoft .NET Framework 3.5 and 4.6.2 | 4.7.0 to before 10.0.10240.20107 | 10.0.10240.20107 | Patch available | CNA |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 | 3.0.0.0 to before 10.0.14393.6167 | 10.0.14393.6167 | Patch available | CNA |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.7.2 | 4.7.0 to before 3.5.04057.05 | 3.5.04057.05 | Patch available | CNA |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.8 | 4.8.0 to before 3.5.4654.08 | 3.5.4654.08 | Patch available | CNA |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.8.1 | 4.8.1 to before 3.5.09176.01 | 3.5.09176.01 | Patch available | CNA |
| Microsoft | Microsoft .NET Framework 4.6.2 | 4.7.0 to before 4.7.04057.05 | 4.7.04057.05 | Patch available | CNA |
| Microsoft | Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 | 4.7.0 to before 4.7.04057.05 | 4.7.04057.05 | Patch available | CNA |
| Microsoft | Microsoft .NET Framework 4.8 | 4.8.0 to before 4.8.4654.06 | 4.8.4654.06 | Patch available | CNA |
- Microsoft .NET Framework 3.5 and 4.6.2 VendorMicrosoft Affected 4.7.0 to before 10.0.10240.20107 Fixed in 10.0.10240.20107 Patch available CNA
- Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 VendorMicrosoft Affected 3.0.0.0 to before 10.0.14393.6167 Fixed in 10.0.14393.6167 Patch available CNA
- Microsoft .NET Framework 3.5 AND 4.7.2 VendorMicrosoft Affected 4.7.0 to before 3.5.04057.05 Fixed in 3.5.04057.05 Patch available CNA
- Microsoft .NET Framework 3.5 AND 4.8 VendorMicrosoft Affected 4.8.0 to before 3.5.4654.08 Fixed in 3.5.4654.08 Patch available CNA
- Microsoft .NET Framework 3.5 AND 4.8.1 VendorMicrosoft Affected 4.8.1 to before 3.5.09176.01 Fixed in 3.5.09176.01 Patch available CNA
- Microsoft .NET Framework 4.6.2 VendorMicrosoft Affected 4.7.0 to before 4.7.04057.05 Fixed in 4.7.04057.05 Patch available CNA
- Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 VendorMicrosoft Affected 4.7.0 to before 4.7.04057.05 Fixed in 4.7.04057.05 Patch available CNA
- Microsoft .NET Framework 4.8 VendorMicrosoft Affected 4.8.0 to before 4.8.4654.06 Fixed in 4.8.4654.06 Patch available CNA
CPE configurations NVD · 30
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:microsoft:.net_framework:4.6.2:*:*:*:*:*:*:* | 4.6.2 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:x64:* | not specified by NVD | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:x86:* | not specified by NVD | Running on | Microsoft |
| cpe:2.3:a:microsoft:.net_framework:3.5:-:*:*:*:*:*:* | 3.5 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:.net_framework:4.8.1:*:*:*:*:*:*:* | 4.8.1 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_10_21h2:-:*:*:*:*:*:arm64:* | not specified by NVD | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_10_21h2:-:*:*:*:*:*:x64:* | not specified by NVD | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_10_21h2:-:*:*:*:*:*:x86:* | not specified by NVD | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_10_22h2:-:*:*:*:*:*:arm64:* | not specified by NVD | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_10_22h2:-:*:*:*:*:*:x64:* | not specified by NVD | Running on | Microsoft |
- cpe:2.3:a:microsoft:.net_framework:4.6.2:*:*:*:*:*:*:* Versions 4.6.2 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:x64:* Versions not specified by NVD Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:x86:* Versions not specified by NVD Running on ·Microsoft
- cpe:2.3:a:microsoft:.net_framework:3.5:-:*:*:*:*:*:* Versions 3.5 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:.net_framework:4.8.1:*:*:*:*:*:*:* Versions 4.8.1 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_10_21h2:-:*:*:*:*:*:arm64:* Versions not specified by NVD Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_10_21h2:-:*:*:*:*:*:x64:* Versions not specified by NVD Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_10_21h2:-:*:*:*:*:*:x86:* Versions not specified by NVD Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_10_22h2:-:*:*:*:*:*:arm64:* Versions not specified by NVD Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_10_22h2:-:*:*:*:*:*:x64:* Versions not specified by NVD Running on ·Microsoft
Show 20 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:microsoft:windows_10_22h2:-:*:*:*:*:*:x86:* | not specified by NVD | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_11_21h2:-:*:*:*:*:*:arm64:* | not specified by NVD | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_11_21h2:-:*:*:*:*:*:x64:* | not specified by NVD | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_11_22h2:-:*:*:*:*:*:arm64:* | not specified by NVD | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_11_22h2:-:*:*:*:*:*:x64:* | not specified by NVD | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2022:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microsoft |
| cpe:2.3:a:microsoft:.net_framework:4.7:*:*:*:*:*:*:* | 4.7 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:.net_framework:4.7.1:*:*:*:*:*:*:* | 4.7.1 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:.net_framework:4.7.2:*:*:*:*:*:*:* | 4.7.2 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:* | r2 sp1 | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:* | r2 | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_10_1809:-:*:*:*:*:*:arm64:* | not specified by NVD | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_10_1809:-:*:*:*:*:*:x64:* | not specified by NVD | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_10_1809:-:*:*:*:*:*:x86:* | not specified by NVD | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microsoft |
| cpe:2.3:a:microsoft:.net_framework:4.8:*:*:*:*:*:*:* | 4.8 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_10_1607:-:*:*:*:*:*:x64:* | not specified by NVD | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_10_1607:-:*:*:*:*:*:x86:* | not specified by NVD | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microsoft |
- cpe:2.3:o:microsoft:windows_10_22h2:-:*:*:*:*:*:x86:* Versions not specified by NVD Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_11_21h2:-:*:*:*:*:*:arm64:* Versions not specified by NVD Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_11_21h2:-:*:*:*:*:*:x64:* Versions not specified by NVD Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_11_22h2:-:*:*:*:*:*:arm64:* Versions not specified by NVD Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_11_22h2:-:*:*:*:*:*:x64:* Versions not specified by NVD Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2022:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
- cpe:2.3:a:microsoft:.net_framework:4.7:*:*:*:*:*:*:* Versions 4.7 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:.net_framework:4.7.1:*:*:*:*:*:*:* Versions 4.7.1 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:.net_framework:4.7.2:*:*:*:*:*:*:* Versions 4.7.2 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:* Versions r2 sp1 Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:* Versions r2 Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_10_1809:-:*:*:*:*:*:arm64:* Versions not specified by NVD Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_10_1809:-:*:*:*:*:*:x64:* Versions not specified by NVD Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_10_1809:-:*:*:*:*:*:x86:* Versions not specified by NVD Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
- cpe:2.3:a:microsoft:.net_framework:4.8:*:*:*:*:*:*:* Versions 4.8 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_10_1607:-:*:*:*:*:*:x64:* Versions not specified by NVD Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_10_1607:-:*:*:*:*:*:x86:* Versions not specified by NVD Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
Remediation
Microsoft 17 updates
- Security Update
- Microsoft .NET Framework 3.5 AND 4.8 4.8.04654.06
- Microsoft .NET Framework 3.5 AND 4.8.1 3.5.09176.01
- Monthly Rollup
- Microsoft .NET Framework 2.0 Service Pack 2 2.0.50727.8974
- Microsoft .NET Framework 4.6.2 4.7.04057.05
- Monthly Rollup
- Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 4.7.04057.07
- Microsoft .NET Framework 4.8 4.8.04654.08
Show 14 more Microsoft updates
- Monthly Rollup
- Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 4.7.04057.05
- Microsoft .NET Framework 4.8 4.8.04654.06
- Monthly Rollup
- Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 4.7.04057.05
- Microsoft .NET Framework 4.8 4.8.4654.06
- Security Update
- Microsoft .NET Framework 3.5 AND 4.8 4.8.04654.06
- Microsoft .NET Framework 3.5 AND 4.8.1 4.8.09176.01
- Security Update
- Microsoft .NET Framework 3.5 AND 4.8 4.8.04654.06
- Microsoft .NET Framework 3.5 AND 4.8.1 4.8.09176.01
- Security Update
- Microsoft .NET Framework 3.5 AND 4.8 4.8.04654.06
- Microsoft .NET Framework 3.5 AND 4.8.1 4.8.09176.01
- Security Update
- Microsoft .NET Framework 3.5 AND 4.7.2 3.5.04057.05, 4.7.4057.05
- Microsoft .NET Framework 3.5 AND 4.8 3.5.4654.08, 4.8.04654.08
- Security Only
- Microsoft .NET Framework 2.0 Service Pack 2 3.0.50727.8974
- Microsoft .NET Framework 4.6.2 4.7.4057.04, 4.7.04057.04
- Security Only
- Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 4.7.04057.06
- Microsoft .NET Framework 4.8 4.8.04654.07
- Security Only
- Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 4.7.04057.04
- Microsoft .NET Framework 4.8 4.8.04654.05
- Security Only
- Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 4.7.4057.04
- Microsoft .NET Framework 4.8 4.8.04654.05
- Security Update
- Microsoft .NET Framework 3.5 and 4.6.2 10.0.10240.20107
- Windows 10 for 32-bit Systems 10.0.10240.20107
- Windows 10 for x64-based Systems 10.0.10240.20107
- Security Update
- Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 10.0.14393.6167
- Windows 10 Version 1607 for 32-bit Systems 10.0.14393.6167
- Windows 10 Version 1607 for x64-based Systems 10.0.14393.6167
- Windows Server 2016 10.0.14393.6167
- Windows Server 2016 (Server Core installation) 10.0.14393.6167
- Security Update
- Microsoft .NET Framework 4.8 4.8.4654.06, 4.8.04654.06
- Security Update
- Microsoft .NET Framework 3.5 AND 4.8.1 4.8.09176.01
Vendor assessments
Microsoft
Microsoft's page for this CVE →
- Impact
- Spoofing
- Exploited
- No
- Publicly disclosed
- No
- Exploitability
- Exploitation Less Likely
Timeline
- 2026-10-02 Threatist record created from CVE-2023-36873
- 2026-10-03 Alias added: GHSA-xrx4-g976-77rm
References
More Microsoft .net Framework vulnerabilities
- TI-2020-00622 XML injection in Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 KEVCVSS 3.1CRITICAL 9.8
- TI-2020-01112 A remote code execution vulnerability exists in .NET Framework, Microsoft SharePoint, and… KEVCVSS 3.1HIGH 7.8
- TI-2017-06273 Code injection in Microsoft .NET Framework KEVCVSS 3.1HIGH 7.8
- TI-2015-01495 The Windows DirectWrite library, as used in Microsoft .NET Framework 3.0 SP2, 3.5, 3.5.1… KEVCVSS 3.1HIGH 7.8
- TI-2024-19239 .NET Framework Information Disclosure Vulnerability KEVCVSS 3.1HIGH 7.5
- TI-2023-18684 ASP.NET Elevation of Privilege Vulnerability CVSS 3.1HIGH 8.8
Sources
- CVE-2023-36873 · CVE Program
- CVE-2023-36873 · NVD
- FIRST EPSS
- GHSA-xrx4-g976-77rm · GitHub Advisory Database · CC BY 4.0
- CVE-2023-36873 · Microsoft Security Update Guide
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences