Vulnerability · Published Oct 13, 2026 · Assigned by microsoft
CVE-2026-96957.NET Security Feature Bypass Vulnerability
High 8.8
In plain English
A high-severity security flaw in Microsoft Visual Studio 2022 version 17.14 from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 45% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.5%top 54.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Improper verification of cryptographic signature in .NET allows an unauthorized attacker to bypass a security feature over a network.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:10 | aspnetcore-runtime-10.0 | 10.0.13-1.el10_2 | ALSA-2026:86195 |
| AlmaLinux:8 | aspnetcore-runtime-10.0 | 10.0.13-1.el8_10 | ALSA-2026:86192 |
| AlmaLinux:9 | aspnetcore-runtime-10.0 | 10.0.13-1.el9_8 | ALSA-2026:86193 |
| AlmaLinux:10 | aspnetcore-runtime-dbg-10.0 | 10.0.13-1.el10_2 | ALSA-2026:86195 |
| AlmaLinux:8 | aspnetcore-runtime-dbg-10.0 | 10.0.13-1.el8_10 | ALSA-2026:86192 |
| AlmaLinux:9 | aspnetcore-runtime-dbg-10.0 | 10.0.13-1.el9_8 | ALSA-2026:86193 |
| AlmaLinux:10 | aspnetcore-targeting-pack-10.0 | 10.0.13-1.el10_2 | ALSA-2026:86195 |
| AlmaLinux:8 | aspnetcore-targeting-pack-10.0 | 10.0.13-1.el8_10 | ALSA-2026:86192 |
| AlmaLinux:9 | aspnetcore-targeting-pack-10.0 | 10.0.13-1.el9_8 | ALSA-2026:86193 |
| AlmaLinux:8 | dotnet | 10.0.113-1.el8_10 | ALSA-2026:86192 |
| AlmaLinux:10 | dotnet-apphost-pack-10.0 | 10.0.13-1.el10_2 | ALSA-2026:86195 |
| AlmaLinux:8 | dotnet-apphost-pack-10.0 | 10.0.13-1.el8_10 | ALSA-2026:86192 |
| AlmaLinux:9 | dotnet-apphost-pack-10.0 | 10.0.13-1.el9_8 | ALSA-2026:86193 |
| AlmaLinux:10 | dotnet-host | 10.0.13-1.el10_2 | ALSA-2026:86195 |
| AlmaLinux:9 | dotnet-host | 10.0.13-1.el9_8 | ALSA-2026:86193 |
| AlmaLinux:10 | dotnet-hostfxr-10.0 | 10.0.13-1.el10_2 | ALSA-2026:86195 |
| AlmaLinux:8 | dotnet-hostfxr-10.0 | 10.0.13-1.el8_10 | ALSA-2026:86192 |
| AlmaLinux:9 | dotnet-hostfxr-10.0 | 10.0.13-1.el9_8 | ALSA-2026:86193 |
| AlmaLinux:10 | dotnet-runtime-10.0 | 10.0.13-1.el10_2 | ALSA-2026:86195 |
| AlmaLinux:8 | dotnet-runtime-10.0 | 10.0.13-1.el8_10 | ALSA-2026:86192 |
| AlmaLinux:9 | dotnet-runtime-10.0 | 10.0.13-1.el9_8 | ALSA-2026:86193 |
| AlmaLinux:10 | dotnet-runtime-dbg-10.0 | 10.0.13-1.el10_2 | ALSA-2026:86195 |
| AlmaLinux:8 | dotnet-runtime-dbg-10.0 | 10.0.13-1.el8_10 | ALSA-2026:86192 |
| AlmaLinux:9 | dotnet-runtime-dbg-10.0 | 10.0.13-1.el9_8 | ALSA-2026:86193 |
| AlmaLinux:10 | dotnet-sdk-10.0 | 10.0.113-1.el10_2 | ALSA-2026:86195 |
| AlmaLinux:8 | dotnet-sdk-10.0 | 10.0.113-1.el8_10 | ALSA-2026:86192 |
| AlmaLinux:9 | dotnet-sdk-10.0 | 10.0.113-1.el9_8 | ALSA-2026:86193 |
| AlmaLinux:10 | dotnet-sdk-10.0-source-built-artifacts | 10.0.113-1.el10_2 | ALSA-2026:86195 |
| AlmaLinux:8 | dotnet-sdk-10.0-source-built-artifacts | 10.0.113-1.el8_10 | ALSA-2026:86192 |
| AlmaLinux:9 | dotnet-sdk-10.0-source-built-artifacts | 10.0.113-1.el9_8 | ALSA-2026:86193 |
| AlmaLinux:10 | dotnet-sdk-aot-10.0 | 10.0.113-1.el10_2 | ALSA-2026:86195 |
| AlmaLinux:8 | dotnet-sdk-aot-10.0 | 10.0.113-1.el8_10 | ALSA-2026:86192 |
| AlmaLinux:9 | dotnet-sdk-aot-10.0 | 10.0.113-1.el9_8 | ALSA-2026:86193 |
| AlmaLinux:10 | dotnet-sdk-dbg-10.0 | 10.0.113-1.el10_2 | ALSA-2026:86195 |
| AlmaLinux:8 | dotnet-sdk-dbg-10.0 | 10.0.113-1.el8_10 | ALSA-2026:86192 |
| AlmaLinux:9 | dotnet-sdk-dbg-10.0 | 10.0.113-1.el9_8 | ALSA-2026:86193 |
| AlmaLinux:10 | dotnet-targeting-pack-10.0 | 10.0.13-1.el10_2 | ALSA-2026:86195 |
| AlmaLinux:8 | dotnet-targeting-pack-10.0 | 10.0.13-1.el8_10 | ALSA-2026:86192 |
| AlmaLinux:9 | dotnet-targeting-pack-10.0 | 10.0.13-1.el9_8 | ALSA-2026:86193 |
| AlmaLinux:10 | dotnet-templates-10.0 | 10.0.113-1.el10_2 | ALSA-2026:86195 |
| AlmaLinux:8 | dotnet-templates-10.0 | 10.0.113-1.el8_10 | ALSA-2026:86192 |
| AlmaLinux:9 | dotnet-templates-10.0 | 10.0.113-1.el9_8 | ALSA-2026:86193 |
| Alpine:v3.23 | dotnet10-runtime | 10.0.13-r0 | ALPINE-CVE-2026-96957 |
| Alpine:v3.24 | dotnet10-runtime | 10.0.13-r0 | ALPINE-CVE-2026-96957 |
| Rocky Linux:10 | dotnet10.0 | 0:10.0.113-1.el10_2 | RLSA-2026:86195 |
| Rocky Linux:8 | dotnet10.0 | 0:10.0.113-1.el8_10 | RLSA-2026:86192 |
| Rocky Linux:9 | dotnet10.0 | 0:10.0.113-1.el9_8 | RLSA-2026:86193 |
| Ubuntu:24.04:LTS | dotnet10 | 10.0.113-10.0.13-0ubuntu1~24.04.1 | UBUNTU-CVE-2026-96957 |
| Ubuntu:24.04:LTS | dotnet10 | 10.0.113-10.0.13-0ubuntu1~24.04.1 | USN-8942-1 |
| Ubuntu:26.04:LTS | dotnet10 | 10.0.113-10.0.13-0ubuntu1~26.04.1 | USN-8942-1 |
| Ubuntu:26.04:LTS | dotnet10 | 10.0.113-10.0.13-0ubuntu1~26.04.1 | UBUNTU-CVE-2026-96957 |
| Ubuntu:26.10 | dotnet10 | 10.0.113-10.0.13-0ubuntu1~26.10.1 | UBUNTU-CVE-2026-96957 |
| Ubuntu:26.10 | dotnet10 | 10.0.113-10.0.13-0ubuntu1~26.10.1 | USN-8942-1 |
| Ubuntu:26.10 | dotnet11 | 11.0.100-11.0.0~rc2-0ubuntu1~26.10.1 | UBUNTU-CVE-2026-96957 |
| Ubuntu:26.10 | dotnet11 | 11.0.100-11.0.0~rc2-0ubuntu1~26.10.1 | USN-8942-1 |
| Ubuntu:22.04:LTS | dotnet7 | no fix listed | UBUNTU-CVE-2026-96957 |
| Ubuntu:22.04:LTS | dotnet8 | 8.0.132-8.0.32-0ubuntu1~22.04.1 | USN-8942-1 |
| Ubuntu:24.04:LTS | dotnet8 | 8.0.132-8.0.32-0ubuntu1~24.04.1 | USN-8942-1 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | .NET 10.0 runtime | 10.0.0 – before 10.0.402 |
| Microsoft | .NET 11.0 runtime | 11.0.0 – before 11.0.100-rc.2 |
| Microsoft | Microsoft Visual Studio 2022 version 17.14 | 17.14.0 – before 17.14.42 |
| Microsoft | Microsoft Visual Studio 2026 version 18.10 | 18.10.0 – before 18.10.4 |
Weakness: CWE-347 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
References
- .NET Security Feature Bypass Vulnerability vendor-advisory, patch