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TI-2012-04061 Aliases CVE-2012-4777GHSA-69xc-62mc-6v46

The code-optimization feature in the reflection implementation in Microsoft .NET…

Priority MEDIUM 61CWE-264Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Medium
Impact type
Security bypass
Confidentiality · integrity · availability
Complete · Complete · Complete
Fix status
No fix listed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-264.

Summary

The code-optimization feature in the reflection implementation in Microsoft .NET Framework 4 and 4.5 does not properly enforce object permissions, which allows remote attackers to execute arbitrary code via (1) a crafted XAML browser application (aka XBAP) or (2) a crafted .NET Framework application, aka "WPF Reflection Optimization Vulnerability."

Why it matters now

EPSS 0.24755 97th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 19

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:.net_framework:4.0:*:*:*:*:*:*:*4.0VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_7:*:*:x64:*:*:*:*:*all versionsRunning onMicrosoft
cpe:2.3:o:microsoft:windows_7:*:*:x86:*:*:*:*:*all versionsRunning onMicrosoft
cpe:2.3:o:microsoft:windows_7:*:sp1:x64:*:*:*:*:*all versionsRunning onMicrosoft
cpe:2.3:o:microsoft:windows_7:*:sp1:x86:*:*:*:*:*all versionsRunning onMicrosoft
cpe:2.3:o:microsoft:windows_server_2003:*:sp2:*:*:*:*:*:*all versionsRunning onMicrosoft
cpe:2.3:o:microsoft:windows_server_2008:*:r2:itanium:*:*:*:*:*all versionsRunning onMicrosoft
cpe:2.3:o:microsoft:windows_server_2008:*:r2:x64:*:*:*:*:*all versionsRunning onMicrosoft
cpe:2.3:o:microsoft:windows_server_2008:*:sp2:itanium:*:*:*:*:*all versionsRunning onMicrosoft
cpe:2.3:o:microsoft:windows_server_2008:*:sp2:x64:*:*:*:*:*all versionsRunning onMicrosoft
  • cpe:2.3:a:microsoft:.net_framework:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_7:*:*:x64:*:*:*:*:* Versions all versions Running on ·Microsoft
  • cpe:2.3:o:microsoft:windows_7:*:*:x86:*:*:*:*:* Versions all versions Running on ·Microsoft
  • cpe:2.3:o:microsoft:windows_7:*:sp1:x64:*:*:*:*:* Versions all versions Running on ·Microsoft
  • cpe:2.3:o:microsoft:windows_7:*:sp1:x86:*:*:*:*:* Versions all versions Running on ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2003:*:sp2:*:*:*:*:*:* Versions all versions Running on ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2008:*:r2:itanium:*:*:*:*:* Versions all versions Running on ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2008:*:r2:x64:*:*:*:*:* Versions all versions Running on ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2008:*:sp2:itanium:*:*:*:*:* Versions all versions Running on ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2008:*:sp2:x64:*:*:*:*:* Versions all versions Running on ·Microsoft
Show 9 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:microsoft:windows_server_2008:*:sp2:x86:*:*:*:*:*all versionsRunning onMicrosoft
cpe:2.3:o:microsoft:windows_vista:*:sp2:*:*:*:*:*:*all versionsRunning onMicrosoft
cpe:2.3:o:microsoft:windows_xp:*:sp3:*:*:*:*:*:*all versionsRunning onMicrosoft
cpe:2.3:o:microsoft:windows_xp:-:sp2:x64:*:*:*:*:*not specified by NVDRunning onMicrosoft
cpe:2.3:a:microsoft:.net_framework:4.5:*:*:*:*:*:*:*4.5VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_8:-:-:x64:*:*:*:*:*not specified by NVDRunning onMicrosoft
cpe:2.3:o:microsoft:windows_8:-:-:x86:*:*:*:*:*not specified by NVDRunning onMicrosoft
cpe:2.3:o:microsoft:windows_rt:-:*:*:*:*:*:*:*not specified by NVDRunning onMicrosoft
cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*not specified by NVDRunning onMicrosoft
  • cpe:2.3:o:microsoft:windows_server_2008:*:sp2:x86:*:*:*:*:* Versions all versions Running on ·Microsoft
  • cpe:2.3:o:microsoft:windows_vista:*:sp2:*:*:*:*:*:* Versions all versions Running on ·Microsoft
  • cpe:2.3:o:microsoft:windows_xp:*:sp3:*:*:*:*:*:* Versions all versions Running on ·Microsoft
  • cpe:2.3:o:microsoft:windows_xp:-:sp2:x64:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
  • cpe:2.3:a:microsoft:.net_framework:4.5:*:*:*:*:*:*:* Versions 4.5 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_8:-:-:x64:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
  • cpe:2.3:o:microsoft:windows_8:-:-:x86:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
  • cpe:2.3:o:microsoft:windows_rt:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2012-4777
  2. 2026-10-03 Alias added: GHSA-69xc-62mc-6v46

References

Advisory 2

Other 2

  • 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
See all 206 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences