Microsoft Security Advisory CVE-2025-55247 | .NET Denial of Service Vulnerability

Microsoft Security Advisory CVE-2025-55247 | .NET Denial of Service Vulnerability Executive summary Microsoft is releasing this security advisory to provide information about a vulnerability in .NET 8.0.xxx, .NET 9.0.xxx and .NET 10.0.xxx. This advisory also provides guidance on what developers c...

EUVD-2025-34427

Microsoft Security Advisory CVE-2025-55247 | .NET Denial of Service Vulnerability...

Important: Red Hat Security Advisory: .NET 9.0 security update

An update for .NET 9.0 is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from...

dotnet: .NET Information Disclosure Vulnerability

A flaw exists in certain .NET builds where a man-in-the-middle MITM attacker can prevent or downgrade TLS between a client and an SMTP server. This may cause the client to send credentials or message data over an unencrypted connection, exposing sensitive information to the attacker...

dotnet: .NET Information Disclosure Vulnerability

A flaw exists in certain .NET builds where a man-in-the-middle MITM attacker can prevent or downgrade TLS between a client and an SMTP server. This may cause the client to send credentials or message data over an unencrypted connection, exposing sensitive information to the attacker...

Important: Red Hat Security Advisory: .NET 9.0 security update

An update for .NET 9.0 is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from...

dotnet: .NET Security Feature Bypass Vulnerability

A flaw was found in ASP.NET Core’s HTTP request handling that leads to inconsistent interpretation of specially crafted HTTP requests. This mismatch can be abused by an authorized network attacker to smuggle or manipulate request boundaries, allowing bypass of security controls or unintended...

dotnet: .NET Denial of Service Vulnerability

A flaw was found in MSBuild’s temporary directory handling on Linux where predictable, non-randomized temporary paths are used. Local users can create or manipulate those paths before MSBuild runs, causing build failures or unexpected behavior and resulting in denial of service for build operatio...

dotnet: .NET Information Disclosure Vulnerability

A flaw exists in certain .NET builds where a man-in-the-middle MITM attacker can prevent or downgrade TLS between a client and an SMTP server. This may cause the client to send credentials or message data over an unencrypted connection, exposing sensitive information to the attacker...

Important: Red Hat Security Advisory: .NET 8.0 security update

An update for .NET 8.0 is now available for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from...

dotnet: .NET Information Disclosure Vulnerability

A flaw exists in certain .NET builds where a man-in-the-middle MITM attacker can prevent or downgrade TLS between a client and an SMTP server. This may cause the client to send credentials or message data over an unencrypted connection, exposing sensitive information to the attacker...

Important: Red Hat Security Advisory: .NET 8.0 security update

An update for .NET 8.0 is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from...

dotnet: .NET Information Disclosure Vulnerability

A flaw exists in certain .NET builds where a man-in-the-middle MITM attacker can prevent or downgrade TLS between a client and an SMTP server. This may cause the client to send credentials or message data over an unencrypted connection, exposing sensitive information to the attacker...

Important: Red Hat Security Advisory: .NET 8.0 security update

An update for .NET 8.0 is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from...

ALSA-2025:18153 Important: .NET 9.0 security update

.NET is a managed-software framework. It implements a subset of the .NET framework APIs and several new APIs, and it includes a CLR implementation. New versions of .NET that address a security vulnerability are now available. The updated versions are .NET SDK 9.0.111 and .NET Runtime...

ALSA-2025:18150 Important: .NET 9.0 security update

.NET is a managed-software framework. It implements a subset of the .NET framework APIs and several new APIs, and it includes a CLR implementation. New versions of .NET that address a security vulnerability are now available. The updated versions are .NET SDK 9.0.111 and .NET Runtime...

ALSA-2025:18148 Important: .NET 8.0 security update

.NET is a managed-software framework. It implements a subset of the .NET framework APIs and several new APIs, and it includes a CLR implementation. New versions of .NET that address a security vulnerability are now available. The updated versions are .NET SDK 8.0.121 and .NET Runtime...

RHEL 8 : .NET 9.0 (RHSA-2025:18150)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2025:18150 advisory. .NET is a managed-software framework. It implements a subset of the .NET framework APIs and several new APIs, and it includes a CLR...

RHEL 10 : .NET 9.0 (RHSA-2025:18153)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2025:18153 advisory. .NET is a managed-software framework. It implements a subset of the .NET framework APIs and several new APIs, and it includes a CLR...

RHEL 9 : .NET 8.0 (RHSA-2025:18149)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2025:18149 advisory. .NET is a managed-software framework. It implements a subset of the .NET framework APIs and several new APIs, and it includes a CLR...