PatchTheCEVCVE-2026-70035: Deserialization of untrusted data in .NET Framework allows an unauthorized attacker to execute code over a net
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HIGH 8.8WATCHLIST
CVE-2026-70035 is a high-severity flaw (CVSS 8.8) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Deserialization of untrusted data in .NET Framework allows an unauthorized attacker to execute code over a network.
Why this priority
- High severity
- On your watchlist
A fixed release or distro patch exists.
Risk facts
| CVSS score | 8.8 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | Required |
| EPSS exploit chance | 1.3% (top 30%) |
| CISA exploited list | No |
| Weakness | CWE-502 |
| Published | 2026-10-13 |
| Last modified | 2026-10-22 |
Publisher (CNA): Microsoft Corporation
Timeline
- Published CVE record published
- Updated Record last modified
Exact fixes by distribution
NuGet (.NET) · Microsoft.WindowsDesktop.App.Runtime.win-arm64 · FIXED · 10.0.13 · vulnerable: >= 10.0.0, <= 10.0.12 · source
dotnet add package Microsoft.WindowsDesktop.App.Runtime.win-arm64 --version 10.0.13
NuGet (.NET) · Microsoft.WindowsDesktop.App.Runtime.win-x64 · FIXED · 10.0.13 · vulnerable: >= 10.0.0, <= 10.0.12 · source
dotnet add package Microsoft.WindowsDesktop.App.Runtime.win-x64 --version 10.0.13
NuGet (.NET) · Microsoft.WindowsDesktop.App.Runtime.win-x86 · FIXED · 10.0.13 · vulnerable: >= 10.0.0, <= 10.0.12 · source
dotnet add package Microsoft.WindowsDesktop.App.Runtime.win-x86 --version 10.0.13
Ubuntu 22.04 · dotnet6 · NOT AFFECTED
Ubuntu 22.04 · dotnet8 · NOT AFFECTED
Ubuntu 24.04 · dotnet8 · NOT AFFECTED
Ubuntu 24.04 · dotnet10 · NOT AFFECTED
Alpine 3.22 · dotnet8-runtime · FIXED · dotnet8-runtime-8.0.32-r0
apk add --upgrade dotnet8-runtime
apk info -v dotnet8-runtime
Alpine 3.22 · dotnet9-runtime · FIXED · dotnet9-runtime-9.0.21-r0
apk add --upgrade dotnet9-runtime
apk info -v dotnet9-runtime
Alpine 3.23 · dotnet10-runtime · FIXED · dotnet10-runtime-10.0.13-r0
apk add --upgrade dotnet10-runtime
apk info -v dotnet10-runtime
Alpine 3.23 · dotnet8-runtime · FIXED · dotnet8-runtime-8.0.32-r0
apk add --upgrade dotnet8-runtime
apk info -v dotnet8-runtime
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.