high8.8
CVE-2026-69439
Heap-based buffer overflow in .NET and Visual Studio allows an unauthorized attacker to elevate privileges over a network.
Impact
Heap-based buffer overflow in .NET and Visual Studio allows an unauthorized attacker to elevate privileges over a network.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| nuget | Microsoft.DiaSymReader.Native | >= 17.10.0-beta1.24272.1, <= 18.9.0-beta1.26405.1 | 18.9.0-beta1.26405.2 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Microsoft | .Net | from 8.0.0 before 8.0.31 from 9.0.0 before 9.0.20 from 10.0.0 before 10.0.12 Version 11.0.0 |
| Microsoft | Visual Studio 2022 | from 17.14.0 before 17.14.40 |
| Microsoft | Visual Studio 2026 | from 18.9.0 before 18.9.3 |