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TI-2026-44946 Aliases CVE-2026-62886GHSA-jqhp-238x-qhgf

.NET Elevation of Privilege Vulnerability

Priority LOW 36CWE-122Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Privilege escalation
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Microsoft. Impact type from Microsoft.

Summary

Integer overflow or wraparound in .NET allows an unauthorized attacker to elevate privileges locally.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00466 40th percentileScored 2026-11-07
Fix Fixed Microsoft.WindowsDesktop.App.Runtime.win-arm64 (NuGet): 10.0.11, 9.0.19, 8.0.30Microsoft.WindowsDesktop.App.Runtime.win-x64 (NuGet): 10.0.11, 9.0.19, 8.0.30+1 more productMicrosoft: 21 updates

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MicrosoftMicrosoft .NET Framework 3.53.5.0 to before 2.0.50727.8987 AND 3.0.30729.89822.0.50727.8987 AND 3.0.30729.8982Patch availableCNA
MicrosoftMicrosoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.23.0.0.0 to before 2.0.50727.9073 AND 3.0.30729.9070 AND 4.7.4150.02.0.50727.9073 AND 3.0.30729.9070 AND 4.7.4150.0Patch availableCNA
MicrosoftMicrosoft .NET Framework 3.5 AND 4.7.24.7.0 to before 2.0.50727.9070 & 3.0.30729.9068 & 4.7.4145.02.0.50727.9070 & 3.0.30729.9068 & 4.7.4145.0Patch availableCNA
MicrosoftMicrosoft .NET Framework 3.5 AND 4.84.8.0 to before 2.0.50727.9073 AND 3.0.30729.9070 AND 4.8.4811.02.0.50727.9073 AND 3.0.30729.9070 AND 4.8.4811.0Patch availableCNA
MicrosoftMicrosoft .NET Framework 3.5 AND 4.8.14.8.1 to before 2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.02.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0Patch availableCNA
MicrosoftMicrosoft .NET Framework 4.6.2/4.7/4.7.1/4.7.24.7.0 to before 4.7.4145.04.7.4145.0Patch availableCNA
MicrosoftMicrosoft .NET Framework 4.84.8.0 to before 4.8.4806.04.8.4806.0Patch availableCNA
MicrosoftMicrosoft .NET Framework 4.8.14.8.0.0 to before 4.8.9347.04.8.9347.0Patch availableCNA
MicrosoftMicrosoft Visual Studio 2026 version 18.818.0 to before 18.8.318.8.3Patch availableCNA
—Microsoft.WindowsDesktop.App.Runtime.win-arm64 (NuGet)10.0.0 to before 10.0.1110.0.11Patch availableGHSA-jqhp-238x-qhgf
—Microsoft.WindowsDesktop.App.Runtime.win-x64 (NuGet)10.0.0 to before 10.0.1110.0.11Patch availableGHSA-jqhp-238x-qhgf
—Microsoft.WindowsDesktop.App.Runtime.win-x86 (NuGet)10.0.0 to before 10.0.1110.0.11Patch availableGHSA-jqhp-238x-qhgf
—Microsoft.WindowsDesktop.App.Runtime.win-arm64 (NuGet)9.0.0 to before 9.0.199.0.19Patch availableGHSA-jqhp-238x-qhgf
—Microsoft.WindowsDesktop.App.Runtime.win-x64 (NuGet)9.0.0 to before 9.0.199.0.19Patch availableGHSA-jqhp-238x-qhgf
—Microsoft.WindowsDesktop.App.Runtime.win-x86 (NuGet)9.0.0 to before 9.0.199.0.19Patch availableGHSA-jqhp-238x-qhgf
—Microsoft.WindowsDesktop.App.Runtime.win-arm64 (NuGet)8.0.0 to before 8.0.308.0.30Patch availableGHSA-jqhp-238x-qhgf
—Microsoft.WindowsDesktop.App.Runtime.win-x64 (NuGet)8.0.0 to before 8.0.308.0.30Patch availableGHSA-jqhp-238x-qhgf
—Microsoft.WindowsDesktop.App.Runtime.win-x86 (NuGet)8.0.0 to before 8.0.308.0.30Patch availableGHSA-jqhp-238x-qhgf
  • Microsoft .NET Framework 3.5 VendorMicrosoft Affected 3.5.0 to before 2.0.50727.8987 AND 3.0.30729.8982 Fixed in 2.0.50727.8987 AND 3.0.30729.8982 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 2.0.50727.9073 AND 3.0.30729.9070 AND 4.7.4150.0 Fixed in 2.0.50727.9073 AND 3.0.30729.9070 AND 4.7.4150.0 Patch available CNA
  • Microsoft .NET Framework 3.5 AND 4.7.2 VendorMicrosoft Affected 4.7.0 to before 2.0.50727.9070 & 3.0.30729.9068 & 4.7.4145.0 Fixed in 2.0.50727.9070 & 3.0.30729.9068 & 4.7.4145.0 Patch available CNA
  • Microsoft .NET Framework 3.5 AND 4.8 VendorMicrosoft Affected 4.8.0 to before 2.0.50727.9073 AND 3.0.30729.9070 AND 4.8.4811.0 Fixed in 2.0.50727.9073 AND 3.0.30729.9070 AND 4.8.4811.0 Patch available CNA
  • Microsoft .NET Framework 3.5 AND 4.8.1 VendorMicrosoft Affected 4.8.1 to before 2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0 Fixed in 2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0 Patch available CNA
  • Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 VendorMicrosoft Affected 4.7.0 to before 4.7.4145.0 Fixed in 4.7.4145.0 Patch available CNA
  • Microsoft .NET Framework 4.8 VendorMicrosoft Affected 4.8.0 to before 4.8.4806.0 Fixed in 4.8.4806.0 Patch available CNA
  • Microsoft .NET Framework 4.8.1 VendorMicrosoft Affected 4.8.0.0 to before 4.8.9347.0 Fixed in 4.8.9347.0 Patch available CNA
  • Microsoft Visual Studio 2026 version 18.8 VendorMicrosoft Affected 18.0 to before 18.8.3 Fixed in 18.8.3 Patch available CNA
  • Microsoft.WindowsDesktop.App.Runtime.win-arm64 (NuGet) Vendor— Affected 10.0.0 to before 10.0.11 Fixed in 10.0.11 Patch available GHSA-jqhp-238x-qhgf
  • Microsoft.WindowsDesktop.App.Runtime.win-x64 (NuGet) Vendor— Affected 10.0.0 to before 10.0.11 Fixed in 10.0.11 Patch available GHSA-jqhp-238x-qhgf
  • Microsoft.WindowsDesktop.App.Runtime.win-x86 (NuGet) Vendor— Affected 10.0.0 to before 10.0.11 Fixed in 10.0.11 Patch available GHSA-jqhp-238x-qhgf
  • Microsoft.WindowsDesktop.App.Runtime.win-arm64 (NuGet) Vendor— Affected 9.0.0 to before 9.0.19 Fixed in 9.0.19 Patch available GHSA-jqhp-238x-qhgf
  • Microsoft.WindowsDesktop.App.Runtime.win-x64 (NuGet) Vendor— Affected 9.0.0 to before 9.0.19 Fixed in 9.0.19 Patch available GHSA-jqhp-238x-qhgf
  • Microsoft.WindowsDesktop.App.Runtime.win-x86 (NuGet) Vendor— Affected 9.0.0 to before 9.0.19 Fixed in 9.0.19 Patch available GHSA-jqhp-238x-qhgf
  • Microsoft.WindowsDesktop.App.Runtime.win-arm64 (NuGet) Vendor— Affected 8.0.0 to before 8.0.30 Fixed in 8.0.30 Patch available GHSA-jqhp-238x-qhgf
  • Microsoft.WindowsDesktop.App.Runtime.win-x64 (NuGet) Vendor— Affected 8.0.0 to before 8.0.30 Fixed in 8.0.30 Patch available GHSA-jqhp-238x-qhgf
  • Microsoft.WindowsDesktop.App.Runtime.win-x86 (NuGet) Vendor— Affected 8.0.0 to before 8.0.30 Fixed in 8.0.30 Patch available GHSA-jqhp-238x-qhgf

CPE configurations NVD · 4

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*17.14.0 to before 17.14.38VulnerableMicrosoft
cpe:2.3:a:microsoft:visual_studio_2026:*:*:*:*:*:*:*:*18.8.0 to before 18.8.3VulnerableMicrosoft
cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*8.0.0 to before 8.0.30; 9.0.0 to before 9.0.19; 10.0.0 to before 10.0.11VulnerableMicrosoft
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*not specified by NVDRunning onMicrosoft
  • cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:* Versions 17.14.0 to before 17.14.38 Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:visual_studio_2026:*:*:*:*:*:*:*:* Versions 18.8.0 to before 18.8.3 Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:* Versions 8.0.0 to before 8.0.30; 9.0.0 to before 9.0.19; 10.0.0 to before 10.0.11 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft

Remediation

  • Fix · GHSA-jqhp-238x-qhgf Microsoft.WindowsDesktop.App.Runtime.win-arm64 (NuGet) Fixed in 10.0.11 Advisory →
  • Fix · GHSA-jqhp-238x-qhgf Microsoft.WindowsDesktop.App.Runtime.win-x64 (NuGet) Fixed in 10.0.11 Advisory →
  • Fix · GHSA-jqhp-238x-qhgf Microsoft.WindowsDesktop.App.Runtime.win-x86 (NuGet) Fixed in 10.0.11 Advisory →
  • Fix · GHSA-jqhp-238x-qhgf Microsoft.WindowsDesktop.App.Runtime.win-arm64 (NuGet) Fixed in 9.0.19 Advisory →
  • Fix · GHSA-jqhp-238x-qhgf Microsoft.WindowsDesktop.App.Runtime.win-x64 (NuGet) Fixed in 9.0.19 Advisory →
  • Fix · GHSA-jqhp-238x-qhgf Microsoft.WindowsDesktop.App.Runtime.win-x86 (NuGet) Fixed in 9.0.19 Advisory →
  • Fix · GHSA-jqhp-238x-qhgf Microsoft.WindowsDesktop.App.Runtime.win-arm64 (NuGet) Fixed in 8.0.30 Advisory →
  • Fix · GHSA-jqhp-238x-qhgf Microsoft.WindowsDesktop.App.Runtime.win-x64 (NuGet) Fixed in 8.0.30 Advisory →
  • Fix · GHSA-jqhp-238x-qhgf Microsoft.WindowsDesktop.App.Runtime.win-x86 (NuGet) Fixed in 8.0.30 Advisory →

Microsoft 21 updates

  • KB5126424
    Security Update
    • Microsoft .NET Framework 3.5 AND 4.8.1 2.0.50727.9183 & 3.0.30729.9169 & 4.8.9347.0
  • KB5126422
    Security Update
    • Microsoft .NET Framework 3.5 AND 4.8.1 2.0.50727.9183 & 3.0.30729.9169 & 4.8.9347.0
  • KB5126421
    Security Update
    • Microsoft .NET Framework 3.5 AND 4.8 2.0.50727.9070 & 3.0.30729.9068 & 4.8.4806.0
    • Microsoft .NET Framework 3.5 AND 4.8.1 2.0.50727.9183 & 3.0.30729.9169 & 4.8.9346.0
Show 18 more Microsoft updates
  • KB5126053
    Security Update
    • Microsoft .NET Framework 4.8.1 4.8.9347.0
  • KB5126052
    Security Update
    • Microsoft .NET Framework 3.5 AND 4.8.1 2.0.50727.9183 & 3.0.30729.9169 & 4.8.9347.0
  • KB5126051
    Security Update
    • Microsoft .NET Framework 4.8 4.8.4806.0
  • KB5126050
    Security Update
    • Microsoft .NET Framework 3.5 AND 4.8 2.0.50727.9183 & 3.0.30729.9169 & 4.8.4806.0
  • KB5126049
    Security Update
    • Microsoft .NET Framework 4.8 4.8.4806.0
  • KB5126048
    Security Update
    • Microsoft .NET Framework 3.5 AND 4.8 2.0.50727.9070 & 3.0.30729.9068 & 4.8.4806.0
  • KB5126047
    Security Update
    • Microsoft .NET Framework 4.8 4.8.4806.0
  • KB5126046
    Security Update
    • Microsoft .NET Framework 3.5 AND 4.8 2.0.50727.9183 & 3.0.30729.9169 & 4.8.4806.0
  • KB5126045
    Security Update
    • Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 4.7.4145.0
  • KB5126044
    Security Update
    • Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 4.7.4145.0
  • KB5126043
    Security Update
    • Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 2.0.50727.9070 & 3.0.30729.9068 & 4.7.4145.0
    • Microsoft .NET Framework 3.5 AND 4.7.2 2.0.50727.9070 & 3.0.30729.9068 & 4.7.4145.0
  • KB5123099
    Security Update
    • Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 2.0.50727.8984 & 3.0.30729.8980 & 4.7.4145.0
    • Windows 10 Version 1607 for 32-bit Systems 10.0.14393.9512
    • Windows 10 Version 1607 for x64-based Systems 10.0.14393.9512
    • Windows Server 2016 10.0.14393.9512
    • Windows Server 2016 (Server Core installation) 10.0.14393.9512
  • KB5122106
    Security Update
    • .NET 10.0 installed on Linux 10.0.11
    • .NET 10.0 installed on Mac OS 10.0.11
    • .NET 10.0 installed on Windows 10.0.11
  • KB5122105
    Security Update
    • .NET 9.0 installed on Linux 9.0.19
    • .NET 9.0 installed on Mac OS 9.0.19
    • .NET 9.0 installed on Windows 9.0.19
  • KB5122104
    Security Update
    • .NET 8.0 installed on Linux 8.0.30
    • .NET 8.0 installed on Mac OS 8.0.30
    • .NET 8.0 installed on Windows 8.0.30
  • KB5120747
    Security Update
    • Microsoft .NET Framework 3.5 2.0.50727.9183 & 3.0.30729.9169
  • KB5120716
    Security Update
    • Microsoft .NET Framework 3.5 2.0.50727.8984 & 3.0.30729.8980
  • KB5120695
    Security Update
    • Microsoft .NET Framework 3.5 2.0.50727.8984 & 3.0.30729.8980, 3.0.50727.8984

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

Not affected: 5 products
  • Red Hat Enterprise Linux 10
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9
  • Red Hat Hardened Images
  • Red Hat OpenShift Dev Spaces

Microsoft

Microsoft's page for this CVE →

Impact
Elevation of Privilege
Exploited
No
Publicly disclosed
No
Exploitability
Exploitation Less Likely
ProductStatusPlan or fix
Microsoft Visual Studio 2022 version 17.14Fixed17.14.38 Security Update
Microsoft Visual Studio 2026 version 18.8Fixed18.8.3 Security Update

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-62886
  2. 2026-10-03 Alias added: GHSA-jqhp-238x-qhgf
  3. 2026-10-21 Fix available: Microsoft/Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/[email protected] AND 3.0.30729.9070 AND 4.7.4150.0, Microsoft/Microsoft .NET Framework 3.5 AND [email protected] AND 3.0.30729.9171 AND 4.8.9363.0, Microsoft/Microsoft .NET Framework 3.5 AND [email protected] AND 3.0.30729.9070 AND 4.8.4811.0 +1 · CNA

References

Patch 1

Advisory 1

Other 3

  • TI-2026-79288 Out-of-bounds write in Google Brotli decoder KEVCVSS 4.0CRITICAL 9.2
  • TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
  • TI-2023-19596 .NET and Visual Studio Denial of Service Vulnerability KEVCVSS 3.1HIGH 7.5
  • TI-2023-19588 Microsoft QUIC Denial of Service Vulnerability CVSS 3.1HIGH 7.5
  • TI-2024-14152 .NET and Visual Studio Denial of Service Vulnerability CVSS 3.1HIGH 7.5
  • TI-2021-08380 .NET Core Remote Code Execution Vulnerability CVSS 3.1CRITICAL 9.8
See all 129 →

Sources

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