Microsoft Net
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Recent Microsoft Net Security Advisories
| Advisory | Title | Published |
|---|---|---|
| CVE-2026-114150 | CVE-2026-114150 ASP.NET Core Information Disclosure Vulnerability | November 11, 2026 |
| CVE-2026-114149 | CVE-2026-114149 ASP.NET Core Denial of Service Vulnerability | November 11, 2026 |
| CVE-2026-114157 | CVE-2026-114157 ASP.NET Core Security Feature Bypass Vulnerability | November 11, 2026 |
| CVE-2026-114147 | CVE-2026-114147 ASP.NET Core Denial of Service Vulnerability | November 11, 2026 |
| CVE-2026-114155 | CVE-2026-114155 .NET Elevation of Privilege Vulnerability | November 11, 2026 |
| CVE-2026-114154 | CVE-2026-114154 ASP.NET Core Denial of Service Vulnerability | November 11, 2026 |
| CVE-2026-114156 | CVE-2026-114156 ASP.NET Core Security Feature Bypass Vulnerability | November 11, 2026 |
| CVE-2026-118746 | CVE-2026-118746 .NET Security Feature Bypass Vulnerability | November 11, 2026 |
| CVE-2026-114146 | CVE-2026-114146 ASP.NET Core Elevation of Privilege Vulnerability | November 11, 2026 |
| CVE-2026-118747 | CVE-2026-118747 .NET Denial of Service Vulnerability | November 11, 2026 |
By the Year
In 2026 there have been 93 vulnerabilities in Microsoft Net with an average score of 7.5 out of ten. Last year, in 2025 Net had 8 security vulnerabilities published. That is, 85 more vulnerabilities have already been reported in 2026 as compared to last year. However, the average CVE base score of the vulnerabilities in 2026 is greater by 0.19.
| Year | Vulnerabilities | Average Score |
|---|---|---|
| 2026 | 93 | 7.52 |
| 2025 | 8 | 7.34 |
| 2024 | 21 | 7.57 |
| 2023 | 34 | 7.46 |
| 2022 | 12 | 7.01 |
| 2021 | 8 | 6.76 |
| 2020 | 5 | 5.00 |
It may take a day or so for new Net vulnerabilities to show up in the stats or in the list of recent security vulnerabilities. Additionally vulnerabilities may be tagged under a different product or component name.
Recent Microsoft Net Security Vulnerabilities
Oct 2026: Microsoft QUIC Remote Code Execution Vulnerability
CVE-2026-105016
9.8 - Critical
- October 13, 2026
Heap-based buffer overflow in Microsoft QUIC allows an unauthorized attacker to execute code over a network.
Heap-based Buffer Overflow
Oct 2026: .NET Framework Tampering Vulnerability
CVE-2026-97801
7.5 - High
- October 13, 2026
Improper validation of specified type of input in .NET Framework allows an unauthorized attacker to perform tampering over a network.
Improper Validation of Specified Type of Input
Oct 2026: .NET Denial of Service Vulnerability
CVE-2026-58280
7.5 - High
- October 13, 2026
Uncontrolled recursion in .NET allows an unauthorized attacker to deny service over a network.
Stack Exhaustion
Oct 2026: Active Directory Federation Services (AD FS) Information Disclosure Vulnerability
CVE-2026-97788
7.5 - High
- October 13, 2026
Observable discrepancy in Active Directory Federation Services (AD FS) allows an unauthorized attacker to disclose information over a network.
Side Channel Attack
Oct 2026: .NET Denial of Service Vulnerability
CVE-2026-96960
7.5 - High
- October 13, 2026
Asymmetric resource consumption (amplification) in .NET allows an unauthorized attacker to deny service over a network.
Amplification
Oct 2026: .NET Denial of Service Vulnerability
CVE-2026-96959
7.5 - High
- October 13, 2026
Allocation of resources without limits or throttling in .NET allows an unauthorized attacker to deny service over a network.
Allocation of Resources Without Limits or Throttling
Oct 2026: .NET Denial of Service Vulnerability
CVE-2026-96958
7.5 - High
- October 13, 2026
Inefficient algorithmic complexity in .NET allows an unauthorized attacker to deny service over a network.
Inefficient Algorithmic Complexity
Oct 2026: .NET Security Feature Bypass Vulnerability
CVE-2026-96957
8.8 - High
- October 13, 2026
Improper verification of cryptographic signature in .NET allows an unauthorized attacker to bypass a security feature over a network.
Improper Verification of Cryptographic Signature
Oct 2026: .NET Security Feature Bypass Vulnerability
CVE-2026-96238
6.5 - Medium
- October 13, 2026
Origin validation error in .NET allows an unauthorized attacker to bypass a security feature over a network.
Origin Validation Error
Oct 2026: .NET Remote Code Execution Vulnerability
CVE-2026-96237
7.5 - High
- October 13, 2026
Inclusion of functionality from untrusted control sphere in .NET allows an unauthorized attacker to execute code over a network.
Inclusion of Functionality from Untrusted Control Sphere
Oct 2026: .NET Remote Code Execution Vulnerability
CVE-2026-96235
8.8 - High
- October 13, 2026
Out-of-bounds write in .NET allows an unauthorized attacker to execute code over a network.
Memory Corruption
Oct 2026: .NET Information Disclosure Vulnerability
CVE-2026-96234
5.3 - Medium
- October 13, 2026
Origin validation error in .NET allows an unauthorized attacker to disclose information over a network.
Origin Validation Error
Oct 2026: ASP.NET Core Denial of Service Vulnerability
CVE-2026-96233
7.5 - High
- October 13, 2026
Out-of-bounds write in ASP.NET Core allows an unauthorized attacker to deny service over a network.
Memory Corruption
Oct 2026: .NET Information Disclosure Vulnerability
CVE-2026-96232
7.5 - High
- October 13, 2026
Out-of-bounds read in .NET allows an unauthorized attacker to disclose information over a network.
Out-of-bounds Read
Oct 2026: .NET Elevation of Privilege Vulnerability
CVE-2026-96231
7.8 - High
- October 13, 2026
Improper link resolution before file access ('link following') in .NET allows an authorized attacker to elevate privileges locally.
insecure temporary file
Oct 2026: .NET Information Disclosure Vulnerability
CVE-2026-96229
6.5 - Medium
- October 13, 2026
Permissive list of allowed inputs in .NET allows an unauthorized attacker to disclose information over a network.
Allowlist / Allow List
Oct 2026: .NET Elevation of Privilege Vulnerability
CVE-2026-96225
7.8 - High
- October 13, 2026
Improper link resolution before file access ('link following') in .NET allows an authorized attacker to elevate privileges locally.
insecure temporary file
Oct 2026: .NET Framework Remote Code Execution Vulnerability
CVE-2026-70035
8.8 - High
- October 13, 2026
Deserialization of untrusted data in .NET Framework allows an unauthorized attacker to execute code over a network.
Marshaling, Unmarshaling
Oct 2026: .NET Framework Remote Code Execution Vulnerability
CVE-2026-70007
8.8 - High
- October 13, 2026
Out-of-bounds write in .NET Framework allows an unauthorized attacker to execute code over a network.
Memory Corruption
Oct 2026: .NET Remote Code Execution Vulnerability
CVE-2026-83520
8.8 - High
- October 13, 2026
Deserialization of untrusted data in .NET allows an unauthorized attacker to execute code over a network.
Marshaling, Unmarshaling
Oct 2026: .NET Denial of Service Vulnerability
CVE-2026-84008
7.5 - High
- October 13, 2026
Inefficient algorithmic complexity in .NET allows an unauthorized attacker to deny service over a network.
Inefficient Algorithmic Complexity
Oct 2026: .NET Framework Elevation of Privilege Vulnerability
CVE-2026-85363
8.8 - High
- October 13, 2026
Integer overflow or wraparound in .NET Framework allows an unauthorized attacker to elevate privileges over a network.
Integer Overflow or Wraparound
Oct 2026: .NET Remote Code Execution Vulnerability
CVE-2026-96224
8.8 - High
- October 13, 2026
Out-of-bounds write in .NET allows an unauthorized attacker to execute code over a network.
Memory Corruption
Oct 2026: Active Directory Federation Services (AD FS) Spoofing Vulnerability
CVE-2026-96222
7.4 - High
- October 13, 2026
Improper certificate validation in Active Directory Federation Services (AD FS) allows an unauthorized attacker to perform spoofing over a network.
Improper Certificate Validation
Oct 2026: .NET Elevation of Privilege Vulnerability
CVE-2026-70190
7.3 - High
- October 13, 2026
Improper link resolution before file access ('link following') in .NET allows an authorized attacker to elevate privileges locally.
insecure temporary file
Oct 2026: .NET Framework Security Feature Bypass Vulnerability
CVE-2026-70194
6.5 - Medium
- October 13, 2026
Improper certificate validation in .NET Framework allows an unauthorized attacker to bypass a security feature over a network.
Improper Certificate Validation
Oct 2026: .NET and Visual Studio Remote Code Execution Vulnerability
CVE-2026-70197
8.1 - High
- October 13, 2026
Out-of-bounds write in .NET allows an unauthorized attacker to execute code over a network.
Memory Corruption
Oct 2026: .NET Remote Code Execution Vulnerability
CVE-2026-70174
8.8 - High
- October 13, 2026
Improperly implemented security check for standard in .NET allows an unauthorized attacker to execute code over a network.
Improperly Implemented Security Check for Standard
Oct 2026: .NET Elevation of Privilege Vulnerability
CVE-2026-70165
6.7 - Medium
- October 13, 2026
Improper link resolution before file access ('link following') in .NET allows an authorized attacker to elevate privileges locally.
insecure temporary file
Oct 2026: .NET Elevation of Privilege Vulnerability
CVE-2026-70161
7.3 - High
- October 13, 2026
Improper limitation of a pathname to a restricted directory ('path traversal') in .NET allows an authorized attacker to elevate privileges locally.
Directory traversal
Oct 2026: .NET Remote Code Execution Vulnerability
CVE-2026-87697
8.8 - High
- October 13, 2026
Deserialization of untrusted data in .NET allows an unauthorized attacker to execute code over a network.
Marshaling, Unmarshaling
Oct 2026: .NET Denial of Service Vulnerability
CVE-2026-69651
7.5 - High
- October 13, 2026
Inefficient algorithmic complexity in .NET allows an unauthorized attacker to deny service over a network.
Inefficient Algorithmic Complexity
Oct 2026: .NET Information Disclosure Vulnerability
CVE-2026-66822
5.9 - Medium
- October 13, 2026
Insertion of sensitive information into sent data in .NET allows an unauthorized attacker to disclose information over a network.
Insertion of Sensitive Information Into Sent Data
Sep 2026: .NET Elevation of Privilege Vulnerability
CVE-2026-69806
7 - High
- September 08, 2026
Exposure of sensitive information to an unauthorized actor in .NET allows an authorized attacker to elevate privileges locally.
Information Disclosure
Sep 2026: .NET and Visual Studio Remote Code Execution Vulnerability
CVE-2026-71328
8.8 - High
- September 08, 2026
Heap-based buffer overflow in Visual Studio allows an unauthorized attacker to execute code over a network.
Heap-based Buffer Overflow
Sep 2026: ASP.NET Core Denial of Service Vulnerability
CVE-2026-69304
5.9 - Medium
- September 08, 2026
Improper handling of highly compressed data (data amplification) in ASP.NET Core allows an unauthorized attacker to deny service over a network.
Data Amplification
Sep 2026: .NET Information Disclosure Vulnerability
CVE-2026-58649
6.5 - Medium
- September 08, 2026
Origin validation error in .NET allows an unauthorized attacker to disclose information over a network.
Origin Validation Error
Sep 2026: .NET and Visual Studio Elevation of Privilege Vulnerability
CVE-2026-69439
8.8 - High
- September 08, 2026
Heap-based buffer overflow in .NET and Visual Studio allows an unauthorized attacker to elevate privileges over a network.
Heap-based Buffer Overflow
Sep 2026: .NET and Visual Studio Remote Code Execution Vulnerability
CVE-2026-69522
8.8 - High
- September 08, 2026
Heap-based buffer overflow in Visual Studio allows an unauthorized attacker to execute code over a network.
Heap-based Buffer Overflow
Aug 2026: Microsoft QUIC Information Disclosure Vulnerability
CVE-2026-62898
7.5 - High
- August 11, 2026
Use after free in Microsoft QUIC allows an unauthorized attacker to disclose information over a network.
Dangling pointer
Aug 2026: .NET Core Remote Code Execution Vulnerability
CVE-2026-70354
7.8 - High
- August 11, 2026
Out-of-bounds write in .NET allows an unauthorized attacker to execute code locally.
Memory Corruption
Aug 2026: .NET Framework Elevation of Privilege Vulnerability
CVE-2026-65810
7.8 - High
- August 11, 2026
Relative path traversal in .NET Framework allows an unauthorized attacker to elevate privileges locally.
Relative Path Traversal
Aug 2026: .NET Elevation of Privilege Vulnerability
CVE-2026-62886
7.8 - High
- August 11, 2026
Integer overflow or wraparound in .NET allows an unauthorized attacker to elevate privileges locally.
Integer Overflow or Wraparound
Aug 2026: .NET Framework Elevation of Privilege Vulnerability
CVE-2026-62872
8.8 - High
- August 11, 2026
Incorrect authorization in .NET Framework allows an authorized attacker to elevate privileges over a network.
AuthZ
Aug 2026: .NET Elevation of Privilege Vulnerability
CVE-2026-62871
7.8 - High
- August 11, 2026
Out-of-bounds write in .NET allows an unauthorized attacker to execute code locally.
Memory Corruption
Aug 2026: .NET Elevation of Privilege Vulnerability
CVE-2026-58641
7.8 - High
- August 11, 2026
Integer overflow or wraparound in .NET allows an unauthorized attacker to elevate privileges locally.
Integer Overflow or Wraparound
Aug 2026: .NET Elevation of Privilege Vulnerability
CVE-2026-62909
7.8 - High
- August 11, 2026
Uncaught exception in .NET allows an authorized attacker to elevate privileges locally.
Unchecked Return Value
Aug 2026: .NET Information Disclosure Vulnerability
CVE-2026-62902
6.5 - Medium
- August 11, 2026
Inclusion of functionality from untrusted control sphere in .NET allows an unauthorized attacker to disclose information over a network.
Inclusion of Functionality from Untrusted Control Sphere
Aug 2026: .NET Denial of Service Vulnerability
CVE-2026-62901
7.5 - High
- August 11, 2026
Unchecked input for loop condition in .NET allows an unauthorized attacker to deny service over a network.
Unchecked Input for Loop Condition
Aug 2026: .NET Information Disclosure Vulnerability
CVE-2026-62900
5.9 - Medium
- August 11, 2026
Improper removal of sensitive information before storage or transfer in .NET allows an unauthorized attacker to disclose information over a network.
Improper Removal of Sensitive Information Before Storage or Transfer
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