Vulnerability · Published Apr 14, 2026 · Assigned by microsoft
CVE-2026-33116.NET, .NET Framework, and Visual Studio Denial of Service Vulnerability
High 7.5
In plain English
A high-severity infinite loop in Microsoft .NET Framework 3.5 from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.1% (higher than 82% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)2.1%top 17.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Loop with unreachable exit condition ('infinite loop') in .NET, .NET Framework, Visual Studio allows an unauthorized attacker to deny service over a network.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | aspnetcore-runtime-10.0 | 10.0.6-1.el8_10 | ALSA-2026:8473 |
| AlmaLinux:10 | aspnetcore-runtime-8.0 | 8.0.26-1.el10_1 | ALSA-2026:8470 |
| AlmaLinux:8 | aspnetcore-runtime-8.0 | 8.0.26-1.el8_10 | ALSA-2026:8468 |
| AlmaLinux:9 | aspnetcore-runtime-8.0 | 8.0.26-1.el9_7 | ALSA-2026:8469 |
| AlmaLinux:10 | aspnetcore-runtime-9.0 | 9.0.15-1.el10_1 | ALSA-2026:8472 |
| AlmaLinux:8 | aspnetcore-runtime-9.0 | 9.0.15-1.el8_10 | ALSA-2026:8475 |
| AlmaLinux:8 | aspnetcore-runtime-dbg-10.0 | 10.0.6-1.el8_10 | ALSA-2026:8473 |
| AlmaLinux:10 | aspnetcore-runtime-dbg-8.0 | 8.0.26-1.el10_1 | ALSA-2026:8470 |
| AlmaLinux:8 | aspnetcore-runtime-dbg-8.0 | 8.0.26-1.el8_10 | ALSA-2026:8468 |
| AlmaLinux:9 | aspnetcore-runtime-dbg-8.0 | 8.0.26-1.el9_7 | ALSA-2026:8469 |
| AlmaLinux:10 | aspnetcore-runtime-dbg-9.0 | 9.0.15-1.el10_1 | ALSA-2026:8472 |
| AlmaLinux:8 | aspnetcore-runtime-dbg-9.0 | 9.0.15-1.el8_10 | ALSA-2026:8475 |
| AlmaLinux:8 | aspnetcore-targeting-pack-10.0 | 10.0.6-1.el8_10 | ALSA-2026:8473 |
| AlmaLinux:10 | aspnetcore-targeting-pack-8.0 | 8.0.26-1.el10_1 | ALSA-2026:8470 |
| AlmaLinux:8 | aspnetcore-targeting-pack-8.0 | 8.0.26-1.el8_10 | ALSA-2026:8468 |
| AlmaLinux:9 | aspnetcore-targeting-pack-8.0 | 8.0.26-1.el9_7 | ALSA-2026:8469 |
| AlmaLinux:10 | aspnetcore-targeting-pack-9.0 | 9.0.15-1.el10_1 | ALSA-2026:8472 |
| AlmaLinux:8 | aspnetcore-targeting-pack-9.0 | 9.0.15-1.el8_10 | ALSA-2026:8475 |
| AlmaLinux:8 | dotnet | 10.0.106-1.el8_10 | ALSA-2026:8473 |
| AlmaLinux:8 | dotnet-apphost-pack-10.0 | 10.0.6-1.el8_10 | ALSA-2026:8473 |
| AlmaLinux:10 | dotnet-apphost-pack-8.0 | 8.0.26-1.el10_1 | ALSA-2026:8470 |
| AlmaLinux:8 | dotnet-apphost-pack-8.0 | 8.0.26-1.el8_10 | ALSA-2026:8468 |
| AlmaLinux:9 | dotnet-apphost-pack-8.0 | 8.0.26-1.el9_7 | ALSA-2026:8469 |
| AlmaLinux:10 | dotnet-apphost-pack-9.0 | 9.0.15-1.el10_1 | ALSA-2026:8472 |
| AlmaLinux:8 | dotnet-apphost-pack-9.0 | 9.0.15-1.el8_10 | ALSA-2026:8475 |
| AlmaLinux:8 | dotnet-host | 10.0.6-1.el8_10 | ALSA-2026:8473 |
| AlmaLinux:8 | dotnet-hostfxr-10.0 | 10.0.6-1.el8_10 | ALSA-2026:8473 |
| AlmaLinux:10 | dotnet-hostfxr-8.0 | 8.0.26-1.el10_1 | ALSA-2026:8470 |
| AlmaLinux:8 | dotnet-hostfxr-8.0 | 8.0.26-1.el8_10 | ALSA-2026:8468 |
| AlmaLinux:9 | dotnet-hostfxr-8.0 | 8.0.26-1.el9_7 | ALSA-2026:8469 |
| AlmaLinux:10 | dotnet-hostfxr-9.0 | 9.0.15-1.el10_1 | ALSA-2026:8472 |
| AlmaLinux:8 | dotnet-hostfxr-9.0 | 9.0.15-1.el8_10 | ALSA-2026:8475 |
| AlmaLinux:8 | dotnet-runtime-10.0 | 10.0.6-1.el8_10 | ALSA-2026:8473 |
| AlmaLinux:10 | dotnet-runtime-8.0 | 8.0.26-1.el10_1 | ALSA-2026:8470 |
| AlmaLinux:8 | dotnet-runtime-8.0 | 8.0.26-1.el8_10 | ALSA-2026:8468 |
| AlmaLinux:9 | dotnet-runtime-8.0 | 8.0.26-1.el9_7 | ALSA-2026:8469 |
| AlmaLinux:10 | dotnet-runtime-9.0 | 9.0.15-1.el10_1 | ALSA-2026:8472 |
| AlmaLinux:8 | dotnet-runtime-9.0 | 9.0.15-1.el8_10 | ALSA-2026:8475 |
| AlmaLinux:8 | dotnet-runtime-dbg-10.0 | 10.0.6-1.el8_10 | ALSA-2026:8473 |
| AlmaLinux:10 | dotnet-runtime-dbg-8.0 | 8.0.26-1.el10_1 | ALSA-2026:8470 |
| AlmaLinux:8 | dotnet-runtime-dbg-8.0 | 8.0.26-1.el8_10 | ALSA-2026:8468 |
| AlmaLinux:9 | dotnet-runtime-dbg-8.0 | 8.0.26-1.el9_7 | ALSA-2026:8469 |
| AlmaLinux:10 | dotnet-runtime-dbg-9.0 | 9.0.15-1.el10_1 | ALSA-2026:8472 |
| AlmaLinux:8 | dotnet-runtime-dbg-9.0 | 9.0.15-1.el8_10 | ALSA-2026:8475 |
| AlmaLinux:8 | dotnet-sdk-10.0 | 10.0.106-1.el8_10 | ALSA-2026:8473 |
| AlmaLinux:8 | dotnet-sdk-10.0-source-built-artifacts | 10.0.106-1.el8_10 | ALSA-2026:8473 |
| AlmaLinux:10 | dotnet-sdk-8.0 | 8.0.126-1.el10_1 | ALSA-2026:8470 |
| AlmaLinux:8 | dotnet-sdk-8.0 | 8.0.126-1.el8_10 | ALSA-2026:8468 |
| AlmaLinux:9 | dotnet-sdk-8.0 | 8.0.126-1.el9_7 | ALSA-2026:8469 |
| AlmaLinux:10 | dotnet-sdk-8.0-source-built-artifacts | 8.0.126-1.el10_1 | ALSA-2026:8470 |
| AlmaLinux:8 | dotnet-sdk-8.0-source-built-artifacts | 8.0.126-1.el8_10 | ALSA-2026:8468 |
| AlmaLinux:9 | dotnet-sdk-8.0-source-built-artifacts | 8.0.126-1.el9_7 | ALSA-2026:8469 |
| AlmaLinux:10 | dotnet-sdk-9.0 | 9.0.116-1.el10_1 | ALSA-2026:8472 |
| AlmaLinux:8 | dotnet-sdk-9.0 | 9.0.116-1.el8_10 | ALSA-2026:8475 |
| AlmaLinux:10 | dotnet-sdk-9.0-source-built-artifacts | 9.0.116-1.el10_1 | ALSA-2026:8472 |
| AlmaLinux:8 | dotnet-sdk-9.0-source-built-artifacts | 9.0.116-1.el8_10 | ALSA-2026:8475 |
| AlmaLinux:8 | dotnet-sdk-aot-10.0 | 10.0.106-1.el8_10 | ALSA-2026:8473 |
| AlmaLinux:10 | dotnet-sdk-aot-9.0 | 9.0.116-1.el10_1 | ALSA-2026:8472 |
| AlmaLinux:8 | dotnet-sdk-aot-9.0 | 9.0.116-1.el8_10 | ALSA-2026:8475 |
| AlmaLinux:8 | dotnet-sdk-dbg-10.0 | 10.0.106-1.el8_10 | ALSA-2026:8473 |
| AlmaLinux:10 | dotnet-sdk-dbg-8.0 | 8.0.126-1.el10_1 | ALSA-2026:8470 |
| AlmaLinux:8 | dotnet-sdk-dbg-8.0 | 8.0.126-1.el8_10 | ALSA-2026:8468 |
| AlmaLinux:9 | dotnet-sdk-dbg-8.0 | 8.0.126-1.el9_7 | ALSA-2026:8469 |
| AlmaLinux:10 | dotnet-sdk-dbg-9.0 | 9.0.116-1.el10_1 | ALSA-2026:8472 |
| AlmaLinux:8 | dotnet-sdk-dbg-9.0 | 9.0.116-1.el8_10 | ALSA-2026:8475 |
| AlmaLinux:8 | dotnet-targeting-pack-10.0 | 10.0.6-1.el8_10 | ALSA-2026:8473 |
| AlmaLinux:10 | dotnet-targeting-pack-8.0 | 8.0.26-1.el10_1 | ALSA-2026:8470 |
| AlmaLinux:8 | dotnet-targeting-pack-8.0 | 8.0.26-1.el8_10 | ALSA-2026:8468 |
| AlmaLinux:9 | dotnet-targeting-pack-8.0 | 8.0.26-1.el9_7 | ALSA-2026:8469 |
| AlmaLinux:10 | dotnet-targeting-pack-9.0 | 9.0.15-1.el10_1 | ALSA-2026:8472 |
| AlmaLinux:8 | dotnet-targeting-pack-9.0 | 9.0.15-1.el8_10 | ALSA-2026:8475 |
| AlmaLinux:8 | dotnet-templates-10.0 | 10.0.106-1.el8_10 | ALSA-2026:8473 |
| AlmaLinux:10 | dotnet-templates-8.0 | 8.0.126-1.el10_1 | ALSA-2026:8470 |
| AlmaLinux:8 | dotnet-templates-8.0 | 8.0.126-1.el8_10 | ALSA-2026:8468 |
| AlmaLinux:9 | dotnet-templates-8.0 | 8.0.126-1.el9_7 | ALSA-2026:8469 |
| AlmaLinux:10 | dotnet-templates-9.0 | 9.0.116-1.el10_1 | ALSA-2026:8472 |
| AlmaLinux:8 | dotnet-templates-9.0 | 9.0.116-1.el8_10 | ALSA-2026:8475 |
| AlmaLinux:10 | netstandard-targeting-pack-2.1 | 9.0.116-1.el10_1 | ALSA-2026:8472 |
| AlmaLinux:8 | netstandard-targeting-pack-2.1 | 9.0.116-1.el8_10 | ALSA-2026:8475 |
| Alpine:v3.23 | dotnet10-runtime | 10.0.6-r0 | ALPINE-CVE-2026-33116 |
| Alpine:v3.24 | dotnet10-runtime | 10.0.6-r0 | ALPINE-CVE-2026-33116 |
| Alpine:v3.20 | dotnet8-runtime | 8.0.26-r0 | ALPINE-CVE-2026-33116 |
| Alpine:v3.21 | dotnet8-runtime | 8.0.26-r0 | ALPINE-CVE-2026-33116 |
| Alpine:v3.22 | dotnet8-runtime | 8.0.26-r0 | ALPINE-CVE-2026-33116 |
| Alpine:v3.23 | dotnet8-runtime | 8.0.26-r0 | ALPINE-CVE-2026-33116 |
| Alpine:v3.24 | dotnet8-runtime | 8.0.26-r0 | ALPINE-CVE-2026-33116 |
| Alpine:v3.21 | dotnet9-runtime | 9.0.15-r0 | ALPINE-CVE-2026-33116 |
| Alpine:v3.22 | dotnet9-runtime | 9.0.15-r0 | ALPINE-CVE-2026-33116 |
| Alpine:v3.23 | dotnet9-runtime | 9.0.15-r0 | ALPINE-CVE-2026-33116 |
| Alpine:v3.24 | dotnet9-runtime | 9.0.15-r0 | ALPINE-CVE-2026-33116 |
| NuGet | system.security.cryptography.xml | 9.0.15 | GHSA-37gx-xxp4-5rgx |
| NuGet | system.security.cryptography.xml | 8.0.3 | GHSA-37gx-xxp4-5rgx |
| NuGet | system.security.cryptography.xml | 10.0.6 | GHSA-37gx-xxp4-5rgx |
| Rocky Linux:10 | dotnet10.0 | 0:10.0.106-1.el10_1 | RLSA-2026:8467 |
| Rocky Linux:8 | dotnet10.0 | 0:10.0.106-1.el8_10 | RLSA-2026:8473 |
| Rocky Linux:9 | dotnet10.0 | 0:10.0.106-1.el9_7 | RLSA-2026:8471 |
| Rocky Linux:10 | dotnet8.0 | 0:8.0.126-1.el10_1 | RLSA-2026:8470 |
| Rocky Linux:8 | dotnet8.0 | 0:8.0.126-1.el8_10 | RLSA-2026:8468 |
| Rocky Linux:9 | dotnet8.0 | 0:8.0.126-1.el9_7 | RLSA-2026:8469 |
| Rocky Linux:10 | dotnet9.0 | 0:9.0.116-1.el10_1 | RLSA-2026:8472 |
| Rocky Linux:8 | dotnet9.0 | 0:9.0.116-1.el8_10 | RLSA-2026:8475 |
| Rocky Linux:9 | dotnet9.0 | 0:9.0.116-1.el9_7 | RLSA-2026:8474 |
| Ubuntu:24.04:LTS | dotnet10 | 10.0.106-10.0.6-0ubuntu1~24.04.1 | UBUNTU-CVE-2026-33116 |
| Ubuntu:25.10 | dotnet10 | 10.0.106-10.0.6-0ubuntu1~25.10.1 | UBUNTU-CVE-2026-33116 |
| Ubuntu:26.04:LTS | dotnet10 | 10.0.107-10.0.7-0ubuntu1~26.04.1 | UBUNTU-CVE-2026-33116 |
| Ubuntu:26.10 | dotnet10 | 10.0.107-10.0.7-0ubuntu1~26.04.1 | UBUNTU-CVE-2026-33116 |
| Ubuntu:22.04:LTS | dotnet6 | no fix listed | UBUNTU-CVE-2026-33116 |
| Ubuntu:22.04:LTS | dotnet7 | no fix listed | UBUNTU-CVE-2026-33116 |
| Ubuntu:22.04:LTS | dotnet8 | 8.0.126-8.0.26-0ubuntu1~22.04.1 | UBUNTU-CVE-2026-33116 |
| Ubuntu:24.04:LTS | dotnet8 | 8.0.126-8.0.26-0ubuntu1~24.04.1 | UBUNTU-CVE-2026-33116 |
| Ubuntu:25.10 | dotnet8 | 8.0.126-8.0.26-0ubuntu1~25.10.1 | UBUNTU-CVE-2026-33116 |
| Ubuntu:25.10 | dotnet9 | 9.0.116-9.0.15-0ubuntu1~25.10.1 | UBUNTU-CVE-2026-33116 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | .NET 10.0 | 10.0.0 – before 10.0.6 |
| Microsoft | .NET 8.0 | 8.0 – before 8.0.26 |
| Microsoft | .NET 8.0 | 8.0.0 – before 8.0.26 |
| Microsoft | .NET 9.0 | 9.0.0 – before 9.0.15 |
| Microsoft | Microsoft .NET Framework 3.5 | 3.5.0 – before 2.0.50727.8982 & 3.0.30729.8976 |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.7.2 | 4.7.0 – before 2.0.50727.9068 & 3.0.30729.9065 & 4.7.4141.0 |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.8 | 4.8.0 – before 2.0.50727.9068 & 3.0.30729.9065 & 4.8.4801.0 |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.8.1 | 4.8.1 – before 2.0.50727.9181 & 3.0.30729.9165 & 4.8.9332.0 |
| Microsoft | Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 | 4.7.0 – before 4.8.4801.0 |
| Microsoft | Microsoft .NET Framework 4.8 | 4.8.0 – before 4.8.4801.0 |
Weakness: CWE-835, CWE-400, CWE-20, CWE-776 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
References
- .NET, .NET Framework, and Visual Studio Denial of Service Vulnerability vendor-advisory, patch
- https://access.redhat.com/security/cve/CVE-2026-33116 vdb-entry, x_refsource_REDHAT
- RHBZ#2457741 issue-tracking, x_refsource_REDHAT
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33116.json x_sadp-csaf-vex
- https://access.redhat.com/errata/RHSA-2026:13281 vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:13280 vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:8467 vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:8470 vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:8472 vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:8473 vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:8468 vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:8475 vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:13693 vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:13283 vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:13282 vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:8471 vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:8469 vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:8474 vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:9077 vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:9080 vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:9205 vendor-advisory, x_refsource_REDHAT