Advisoriesby IbisMicrosoftCVE-2026-47304
Microsoft .NET 10.0 runtime: insufficient authenticity check
Fix: upgrade to 10.0.10 or later (10 fixed versions below)
Improper verification of cryptographic signature in .NET allows an unauthorized attacker to bypass a security feature over a network.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| .NET 10.0 runtime Product | >= 10.0.0, < 10.0.10 | 10.0.10 |
| .NET 8.0 runtime Product | >= 8.0.0, < 8.0.29 | 8.0.29 |
| .NET 9.0 runtime Product | >= 9.0.0, < 9.0.18 | 9.0.18 |
| Microsoft .NET Framework 3.5 Product | >= 3.5.0, < 2.0.50727.8983 & 3.0.30729.8978 | 2.0.50727.8983 & 3.0.30729.8978 |
| Microsoft .NET Framework 3.5 AND 4.7.2 Product | >= 4.7.0, < 2.0.50727.9069 & 3.0.30729.9067 & 4.7.4143.0 | 2.0.50727.9069 & 3.0.30729.9067 & 4.7.4143.0 |
| Microsoft .NET Framework 3.5 AND 4.8 Product | >= 4.8.0, < 2.0.50727.9069 & 3.0.30729.9067 & 4.8.4803.0 | 2.0.50727.9069 & 3.0.30729.9067 & 4.8.4803.0 |
| Microsoft .NET Framework 3.5 AND 4.8.1 Product | >= 4.8.1, < 2.0.50727.9182 & 3.0.30729.9168 & 4.8.9339.0 | 2.0.50727.9182 & 3.0.30729.9168 & 4.8.9339.0 |
| Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 Product | >= 4.7.0, < 4.7.4143.0 | 4.7.4143.0 |
| Microsoft .NET Framework 4.8 Product | >= 4.8.0, < 4.8.4803.0 | 4.8.4803.0 |
| Microsoft .NET Framework 4.8.1 Product | >= 4.8.0.0, < 4.8.9340.0 | 4.8.9340.0 |
| Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8) Product | all versions | No fix yet |
| Microsoft Visual Studio 2019 version 16.11 (includes 16.0 - 16.10) Product | all versions | No fix yet |
Changes since it was listed
Fixed in: .NET 10.0 10.0.10, .NET 8.0 8.0.29, .NET 9.0 9.0.18 to .NET 10.0 runtime 10.0.10, .NET 8.0 runtime 8.0.29, .NET 9.0 runtime 9.0.18