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certfr-2026-avi-1316 — De multiples vulnérabilités ont été découvertes dans les produits Microsoft. Certaines d'entre elles permettent à un at…

certfr-2026-avi-1316

fkie_cve-2026-70162

A denial of service vulnerability exists when Microsoft Common Object Runtime Library improperly handles web requests. An attacker who successfully exploited this vulnerability could cause a denial of service against a .NET web application. A remote unauthenticated attacker could exploit this vulnerability by issuing specially crafted requests to the .NET application. The update addresses the vulnerability by correcting how the .NET web application handles web requests.

GHSA-2fmv-rv2c-59x7 — Microsoft Security Advisory CVE-2026-70162 - .NET Denial of Service Vulnerability

Affected: NuGet: System.Security.Cryptography.Pkcs

## Executive summary

Microsoft is releasing this security advisory to provide information about a vulnerability in System.Security.Cryptography.Pkcs. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.

On Windows, `EnvelopedCms.Decode` can perform quadratic work while processing attacker-supplied CMS or PKCS#7 attributes, causing pre-authentication CPU exhaustion.

## Announcement

Announcement for this issue can be found at https://github.com/dotnet/announcements/issues/454

## CVSS Details

- **Version:** 3.1 - **Severity:** Moderate - **Score:** 5.9 - **Vector:** `CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H` - **Weakness:** CWE-405 (Asymmetric Resource Consumption (Amplification))

## Affected Platforms

- **Platforms:** Windows - **Architectures:** All

## <a name="affected-packages"></a>Affected Packages

The vulnerability affects Microsoft .NET projects that use an affected package version listed below.

Package name | Affected version | Patched version ------------ | ---------------- | --------------- [System.Security.Cryptography.Pkcs](https://www.nuget.org/packages/System.Security.Cryptography.Pkcs) | >= 10.0.0, <= 10.0.12 | 10.0.13 [System.Security.Cryptography.Pkcs](https://www.nuget.org/packages/System.Security.Cryptography.Pkcs) | >= 11.0.0-preview.1, <= 11.0.0-rc.1 | 11.0.0-rc.2 [System.Security.Cryptography.Pkcs](https://www.nuget.org/packages/System.Security.Cryptography.Pkcs) | >= 8.0.0…

RHSA-2026:84693 — Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update

dotnet10.0: dotnet9.0: dotnet: dotnet8.0: .NET Denial of Service Vulnerability dotnet10.0: dotnet8.0: dotnet9.0: dotnet: .NET Information Disclosure Vulnerability dotnet9.0: dotnet: dotnet10.0: dotnet8.0: .NET Denial of Service Vulnerability dotnet: .NET Framework Remote Code Execution Vulnerability dotnet: dotnet: arbitrary code execution via untrusted data deserialization dotnet8.0: dotnet10.0: dotnet: dotnet9.0: ASP.NET Core Denial of Service Vulnerability dotnet: dotnet: Denial of Service via specially crafted web requests dotnet: dotnet: Arbitrary code execution via out-of-bounds write dotnet: dotnet: Arbitrary code execution via untrusted data deserialization dotnet: .NET Denial of Service Vulnerability dotnet: dotnet: Privilege escalation via integer overflow dotnet: dotnet: arbitrary code execution via untrusted data deserialization dotnet8.0: Active Directory Federation Services (AD FS) Spoofing Vulnerability dotnet: dotnet8.0: dotnet9.0: dotnet10.0: .NET Elevation of Privilege Vulnerability dotnet: dotnet9.0: dotnet10.0: dotnet8.0: .NET Elevation of Privilege Vulnerability dotnet10.0: dotnet: dotnet8.0: dotnet9.0: ASP.NET Core Denial of Service Vulnerability dotnet: .NET Information Disclosure Vulnerability dotnet8.0: dotnet10.0: dotnet9.0: .NET Remote Code Execution Vulnerability dotnet8.0: dotnet10.0: dotnet9.0: dotnet: .NET Security Feature Bypass Vulnerability

UBUNTU-CVE-2026-70162

Affected: Ubuntu:22.04:LTS: dotnet7