Buffer over-read in Windows RNDIS allows an unauthorized attacker to disclose information with a physical attack.

A type confusion vulnerability in Palo Alto Networks GlobalProtect™ app on Windows enables a local user with low privileges to cause a denial of service (DoS) condition.

The GlobalProtect™ app on Linux, macOS, iOS, Android, and Chrome OS is not affected by this vulnerability.

Multiple pointer dereferences in User Mode Driver in Intel(R) Graphics Driver for Windows before versions 10.18.x.5059 (aka 15.33.x.5059), 10.18.x.5057 (aka 15.36.x.5057), 20.19.x.5063 (aka 15.40.x.5063) 21.20.x.5064 (aka 15.45.x.5064) and 24.20.100.6373 potentially enables an unprivileged user to cause a denial of service via local access.

Microsoft Windows Shell contains a protection mechanism failure vulnerability that allows an unauthorized attacker to perform spoofing over a network.

Microsoft Security Advisory CVE-2026-69304 – ASP.NET Core Denial of Service Vulnerability

Executive summary

Microsoft is releasing this security advisory to provide information about a vulnerability in ASP.NET Core IIS out-of-process hosting and request decompression. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.

The IIS Middleware for ASP.NET Core did not properly constrain decompression of certain types of request, leading to excess memory consumption and a Denial of Service.

Announcement

Announcement for this issue can be found at https://github.com/dotnet/announcements/issues/443

CVSS Details

- Version: 3.1 - Severity: Medium - 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-409 (Improper Handling of Highly Compressed Data (Data Amplification))

Affected Platforms

- Platforms: Windows / IIS out-of-process - Architectures: All

<a name="affected-packages"></a>Affected Packages The vulnerability affects any Microsoft .NET project if it uses any of affected package versions listed below

<a name=".NET 11 RC1"></a>.NET 11 RC1 Package name | Affected version | Patched version ------------ | ---------------- | ------------------------- Microsoft.AspNetCore.Server.IISIntegration | >= 11.0.0-preview.1, < 11.0.0-rc.1 | 11.0.0-rc.1

<a name=".NET 10"></a>.NET 10 Package name | Affected version | Patched version ------------ | ---------------- | ------------------------- Microsoft.AspNetCore.Server.IISIntegration | >= 10.0.0, <= 10.0.11 | 10.0.12

<a name=".NET 9"></a>.NET 9 Package name | Affected version | Patched version ------------ | ---------------- | ------------------------- Microsoft.AspNetCore.Server.IISIntegration | >= 9.0.0, <= 9.0.19 | 9.0.20

<a name=".NET 8"></a>.NET 8 Package name | Affected version | Patched version ------------ | ---------------- | ------------------------- Microsoft.AspNetCore.Server.IISIntegration | >= 8.0.0, <= 8.0.30 | 8.0.31

Advisory FAQ

<a name="how-affected"></a>How do I know if I am affected?

If using a package listed in affected packages, you're exposed to the vulnerability.

<a name="how-fix"></a>How do I fix the issue?

1. To fix the issue please install the latest version of .NET. If you have installed one or more .NET SDKs through Visual Studio, Visual Studio will prompt you to update Visual Studio, which will also update your .NET SDKs. 2. If your application references the vulnerable package, update the package reference to the patched version. You can list the versions you have installed by running the dotnet --info command.

Once you have installed the updated runtime or SDK, restart your apps for the update to take effect.

Additionally, if you've deployed self-contained applications targeting any of the impacted versions, these applications are also vulnerable and must be recompiled and redeployed.

Other Information

Reporting Security Issues

If you have found a potential security issue in a supported version of .NET, please report it to the Microsoft Security Response Center (MSRC) via the MSRC Researcher Portal. Further information can be found in the MSRC Report an Issue FAQ.

Security reports made through MSRC may qualify for the Microsoft .NET Bounty. Details of the Microsoft .NET Bounty Program including terms and conditions are at https://aka.ms/corebounty.

Support

You can ask questions about this issue on GitHub in the .NET GitHub organization. The main repos are located at https://github.com/dotnet/runtime. The Announcements repo (https://github.com/dotnet/Announcements) will contain this bulletin as an issue and will include a link to a discussion issue. You can ask questions in the linked discussion issue.

Disclaimer

The information provided in this advisory is provided "as is" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.

External Links

CVE-2026-69304

Acknowledgements

محمد السيد عثمان محمود القصاص

Anonymous

Revisions

V1.0 (09/08/2026): Advisory published.

.NET Information Disclosure Vulnerability

Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to execute code with a physical attack.

DNG SDK versions 1.7.0 and earlier are affected by an Integer Overflow or Wraparound vulnerability that could lead to application denial-of-service. An attacker could exploit this issue to cause the application to crash or become unresponsive. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Foxit PDF Editor and Reader before 2025.2.1 allow signature spoofing via triggers. An attacker can embed triggers (e.g., JavaScript) in a PDF document that execute during the signing process. When a signer reviews the document, the content appears normal. However, once the signature is applied, the triggers modify content on other pages or optional content layers without explicit warning. This can cause the signed PDF to differ from what the signer saw, undermining the trustworthiness of the digital signature. The fixed versions are 2025.2.1, 14.0.1, and 13.2.1.

An issue was discovered in Foxit PDF and Editor for Windows before 13.2 and 2025 before 2025.2. A crafted PDF containing JavaScript that calls closeDoc() while internal objects are still in use can cause premature release of these objects. This use-after-free vulnerability may lead to memory corruption, potentially resulting in information disclosure when the PDF is opened.

An issue was discovered in Foxit PDF and Editor for Windows and macOS before 13.2 and 2025 before 2025.2. A crafted PDF can contain JavaScript that attaches an OnBlur action on a form field that destroys an annotation. During user right-click interaction, the program's internal focus change handling prematurely releases the annotation object, resulting in a use-after-free vulnerability that may cause memory corruption or application crashes.

An issue was discovered in Foxit PDF and Editor for Windows and macOS before 13.2 and 2025 before 2025.2. A crafted PDF can use JavaScript to alter annotation content and subsequently clear the file's modification status via JavaScript interfaces. This circumvents digital signature verification by hiding document modifications, allowing an attacker to mislead users about the document's integrity and compromise the trustworthiness of signed PDFs.

IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.4 is vulnerable to a denial of service when a specially crafted query is run with range partitioned tables.

Missing authorization in CredentialProvider in Google Chrome on on Windows prior to 155.0.8059.39 allowed a local attacker to obtain sensitive information via physical access. (Chromium security severity: Low)

Missing authorization in Media in Google Chrome on on Windows prior to 155.0.8059.39 allowed a remote attacker who had compromised the renderer process to obtain sensitive information via a crafted HTML page. (Chromium security severity: Low)

IBM Guardium Data Protection 12.0, 12.1, 12.2 is affected by an improper validation of user-supplied pointers in the WfpMonitor kernel driver. Certain METHODNEITHER IOCTL handlers dereference user-controlled pointers without adequate probing and exception handling, potentially allowing a privileged local attacker to cause a system crash or perform limited kernel-memory reads.

Juliano Rizzo announced: [1] http://www.ekoparty.org/2011/juliano-rizzo.php

that at ekoparty Security Conference, from 2011-09-21 to 2011-09-23 they will present a new fast block-wise chosen-plaintext attack against SSL/TLS. One application of the attack should allow the adversary to efficiently decrypt and obtain authentication tokens and cookies from HTTPS requests.

The Red Hat Security Response Team is watching progress on this one and once further details are available, we will immediately react to ensure timely manner updates for affected packages.

Uninitialized resource in ANGLE in Google Chrome on on Windows prior to 155.0.8059.39 allowed a remote attacker to read memory outside the sandbox via a crafted HTML page. (Chromium security severity: High)

An Exposure of Private Personal Information ('Privacy Violation') vulnerability [CWE-359] in Fortinet FortiDLP Agent's Outlookproxy plugin for MacOS and Windows 11.5.1 and 11.4.2 through 11.4.6 and 11.3.2 through 11.3.4 and 11.2.0 through 11.2.3 and 11.1.1. through 11.1.2 and 11.0.1 and 10.5.1 and 10.4.0, and 10.3.1 may allow an authenticated administrator to collect current user's email information.

A insertion of sensitive information into log file in Fortinet FortiDLP 12.0.0 through 12.0.5, 11.5.1, 11.4.6, 11.4.5 allows attacker to information disclosure via re-using the enrollment code.

.NET Spoofing Vulnerability

.NET Information Disclosure Vulnerability

.NET Information Disclosure Vulnerability

.NET Security Feature Bypass Vulnerability

Out of bounds read in Printing in Google Chrome on on Windows prior to 155.0.8059.39 allowed a remote attacker who had compromised the renderer process and leveraged social engineering to read memory outside the sandbox via a crafted HTML page. (Chromium security severity: Medium)

Uninitialized resource in ANGLE in Google Chrome on on Windows prior to 155.0.8059.39 allowed a remote attacker to read memory outside the sandbox via a crafted HTML page. (Chromium security severity: High)

UI misrepresentation in Chromoting in Google Chrome on on Windows prior to 155.0.8059.39 allowed a remote attacker leveraging social engineering to potentially spoof UI elements via crafted network traffic. (Chromium security severity: Low)

A heap-based out-of-bounds read vulnerability exists in Foxit PDF Editor/Reader’s handling of malformed PDF image masks. Inconsistent image metadata may cause incorrect alpha-channel processing during rendering, resulting in an out-of-bounds read and application crash.

A heap-based out-of-bounds read vulnerability exists in Foxit PDF Editor Reader’s handling of PDF image objects with inconsistent compression metadata. Insufficient validation during image decoding may result in an undersized buffer and an out-of-bounds read during rendering, causing an application crash.

The interface of Foxit PDF Editor/Reader lacks the permission verification for secure reading mode, which allows specially crafted PDFs to trigger external SMB authentication without any security prompts and thereby leak the hash of the user's credentials.