Microsoft Net
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Recent Microsoft Net Security Advisories
| Advisory | Title | Published |
|---|---|---|
| CVE-2026-21218 | CVE-2026-21218 .NET Spoofing Vulnerability | February 10, 2026 |
| CVE-2026-0905 | Chromium: CVE-2026-0905 Insufficient policy enforcement in Network | January 17, 2026 |
| CVE-2025-38639 | CVE-2025-38639 netfilter: xt_nfacct: don't assume acct name is null-terminated | January 8, 2026 |
| CVE-2025-68301 | CVE-2025-68301 net: atlantic: fix fragment overflow handling in RX path | January 8, 2026 |
| CVE-2025-68302 | CVE-2025-68302 net: sxgbe: fix potential NULL dereference in sxgbe_rx() | January 7, 2026 |
| CVE-2024-27018 | CVE-2024-27018 netfilter: br_netfilter: skip conntrack input hook for promisc packets | January 1, 2026 |
| CVE-2024-50130 | CVE-2024-50130 netfilter: bpf: must hold reference on net namespace | January 1, 2026 |
| CVE-2024-4773 | CVE-2024-4773 When a network error occurred during page load, the prior content could have remained in view with a blank URL bar. This could have been used to obfuscate a spoofed web site. This vulnerability affects Firefox < 126. | January 1, 2026 |
| CVE-2023-29406 | CVE-2023-29406 Insufficient sanitization of Host header in net/http | January 1, 2026 |
| CVE-2021-47482 | CVE-2021-47482 net: batman-adv: fix error handling | January 1, 2026 |
By the Year
In 2026 there have been 1 vulnerability in Microsoft Net with an average score of 7.5 out of ten. Last year, in 2025 Net had 8 security vulnerabilities published. Right now, Net is on track to have less security vulnerabilities in 2026 than it did last year. However, the average CVE base score of the vulnerabilities in 2026 is greater by 0.16.
| Year | Vulnerabilities | Average Score |
|---|---|---|
| 2026 | 1 | 7.50 |
| 2025 | 8 | 7.34 |
| 2024 | 16 | 7.55 |
| 2023 | 31 | 7.54 |
| 2022 | 10 | 7.05 |
| 2021 | 8 | 6.76 |
| 2020 | 4 | 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
Feb 2026: .NET Spoofing Vulnerability
CVE-2026-21218
7.5 - High
- February 10, 2026
Improper handling of missing special element in .NET allows an unauthorized attacker to perform spoofing over a network.
Improper Handling of Missing Special Element
Oct 2025: .NET, .NET Framework, and Visual Studio Information Disclosure Vulnerability
CVE-2025-55248
4.8 - Medium
- October 14, 2025
Inadequate encryption strength in .NET, .NET Framework, Visual Studio allows an authorized attacker to disclose information over a network.
Inadequate Encryption Strength
Oct 2025: .NET Elevation of Privilege Vulnerability
CVE-2025-55247
7.3 - High
- October 14, 2025
Improper link resolution before file access ('link following') in .NET allows an authorized attacker to elevate privileges locally.
insecure temporary file
Jun 2025: .NET and Visual Studio Remote Code Execution Vulnerability
CVE-2025-30399
7.5 - High
- June 13, 2025
Untrusted search path in .NET and Visual Studio allows an unauthorized attacker to execute code over a network.
Untrusted Path
May 2025: .NET, Visual Studio, and Build Tools for Visual Studio Spoofing Vulnerability
CVE-2025-26646
8 - High
- May 13, 2025
External control of file name or path in .NET, Visual Studio, and Build Tools for Visual Studio allows an authorized attacker to perform spoofing over a network.
External Control of File Name or Path
Jan 2025: .NET and Visual Studio Remote Code Execution Vulnerability
CVE-2025-21172
7.5 - High
- January 14, 2025
.NET and Visual Studio Remote Code Execution Vulnerability
Integer Overflow or Wraparound
Jan 2025: .NET Remote Code Execution Vulnerability
CVE-2025-21171
7.5 - High
- January 14, 2025
.NET Remote Code Execution Vulnerability
Heap-based Buffer Overflow
Jan 2025: .NET Elevation of Privilege Vulnerability
CVE-2025-21173
7.3 - High
- January 14, 2025
.NET Elevation of Privilege Vulnerability
Creation of Temporary File in Directory with Insecure Permissions
Jan 2025: .NET, .NET Framework, and Visual Studio Remote Code Execution Vulnerability
CVE-2025-21176
8.8 - High
- January 14, 2025
.NET, .NET Framework, and Visual Studio Remote Code Execution Vulnerability
Buffer Over-read
Microsoft .NET & Visual Studio Info Disclosure CVE-2024-38167
CVE-2024-38167
6.5 - Medium
- August 13, 2024
.NET and Visual Studio Information Disclosure Vulnerability
Cleartext Transmission of Sensitive Information
Denial of Service in Microsoft .NET Framework & Visual Studio
CVE-2024-38168
7.5 - High
- August 13, 2024
.NET and Visual Studio Denial of Service Vulnerability
Jul 2024: .NET, .NET Framework, and Visual Studio Elevation of Privilege Vulnerability
CVE-2024-38081
7.3 - High
- July 09, 2024
.NET, .NET Framework, and Visual Studio Elevation of Privilege Vulnerability
insecure temporary file
Jul 2024: .NET and Visual Studio Denial of Service Vulnerability
CVE-2024-30105
7.5 - High
- July 09, 2024
.NET and Visual Studio Denial of Service Vulnerability
Resource Exhaustion
Jul 2024: .NET and Visual Studio Remote Code Execution Vulnerability
CVE-2024-35264
8.1 - High
- July 09, 2024
.NET and Visual Studio Remote Code Execution Vulnerability
Dangling pointer
Jul 2024: .NET and Visual Studio Denial of Service Vulnerability
CVE-2024-38095
7.5 - High
- July 09, 2024
.NET and Visual Studio Denial of Service Vulnerability
Improper Input Validation
Microsoft .NET & VS Remote Code Execution via RCE Vulnerability
CVE-2024-30045
6.3 - Medium
- May 14, 2024
.NET and Visual Studio Remote Code Execution Vulnerability
Visual Studio DoS via malformed input
CVE-2024-30046
- May 14, 2024
Visual Studio Denial of Service Vulnerability
Race Condition
Microsoft .NET Framework & Visual Studio RCE via CVE-2024-21409
CVE-2024-21409
7.3 - High
- April 09, 2024
.NET, .NET Framework, and Visual Studio Remote Code Execution Vulnerability
Mar 2024: .NET Framework Information Disclosure Vulnerability
CVE-2024-29059
7.5 - High
- March 23, 2024
.NET Framework Information Disclosure Vulnerability
Generation of Error Message Containing Sensitive Information
Microsoft QUIC DoS via malformed QUIC packets
CVE-2024-26190
7.5 - High
- March 12, 2024
Microsoft QUIC Denial of Service Vulnerability
.NET / Visual Studio DoS Vulnerability (CVE-2024-21392)
CVE-2024-21392
7.5 - High
- March 12, 2024
.NET and Visual Studio Denial of Service Vulnerability
Microsoft Identity Platform DoS Vulnerability (CVE-2024-21319)
CVE-2024-21319
6.8 - Medium
- January 09, 2024
Microsoft Identity Denial of service vulnerability
.NET DoS Vulnerability (CVE-2024-20672)
CVE-2024-20672
7.5 - High
- January 09, 2024
.NET Denial of Service Vulnerability
Microsoft .NET Framework Security Bypass CVE-2024-0057
CVE-2024-0057
9.8 - Critical
- January 09, 2024
NET, .NET Framework, and Visual Studio Security Feature Bypass Vulnerability
Microsoft.Data.SqlClient SQL Feature Bypass Vulnerability
CVE-2024-0056
8.7 - High
- January 09, 2024
Microsoft.Data.SqlClient and System.Data.SqlClient SQL Data Provider Security Feature Bypass Vulnerability
Nov 2023: ASP.NET Core Security Feature Bypass Vulnerability
CVE-2023-36558
6.2 - Medium
- November 14, 2023
ASP.NET Core Security Feature Bypass Vulnerability
Nov 2023: ASP.NET Core Denial of Service Vulnerability
CVE-2023-36038
8.2 - High
- November 14, 2023
ASP.NET Core Denial of Service Vulnerability
Resource Exhaustion
Nov 2023: .NET, .NET Framework, and Visual Studio Elevation of Privilege Vulnerability
CVE-2023-36049
7.6 - High
- November 14, 2023
.NET, .NET Framework, and Visual Studio Elevation of Privilege Vulnerability
Improper Input Validation
Nov 2023: ASP.NET Security Feature Bypass Vulnerability
CVE-2023-36560
8.8 - High
- November 14, 2023
ASP.NET Security Feature Bypass Vulnerability
Nov 2023: Visual Studio Denial of Service Vulnerability
CVE-2023-36042
6.2 - Medium
- November 14, 2023
Visual Studio Denial of Service Vulnerability
Heap-based Buffer Overflow
Microsoft QUIC component DoS via malformed packet
CVE-2023-38171
7.5 - High
- October 10, 2023
Microsoft QUIC Denial of Service Vulnerability
Microsoft QUIC Stack DoS via Unvalidated Input
CVE-2023-36435
7.5 - High
- October 10, 2023
Microsoft QUIC Denial of Service Vulnerability
HTTP/2 DoS via Stream Reset in nginx
CVE-2023-44487
7.5 - High
- October 10, 2023
The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.
Resource Exhaustion
Sep 2023: .NET Core and Visual Studio Denial of Service Vulnerability
CVE-2023-36799
6.5 - Medium
- September 12, 2023
.NET Core and Visual Studio Denial of Service Vulnerability
Resource Exhaustion
Sep 2023: Visual Studio Remote Code Execution Vulnerability
CVE-2023-36792
7.8 - High
- September 12, 2023
Visual Studio Remote Code Execution Vulnerability
Integer Overflow or Wraparound
Sep 2023: Visual Studio Remote Code Execution Vulnerability
CVE-2023-36793
7.8 - High
- September 12, 2023
Visual Studio Remote Code Execution Vulnerability
Heap-based Buffer Overflow
Sep 2023: Visual Studio Remote Code Execution Vulnerability
CVE-2023-36794
7.8 - High
- September 12, 2023
Visual Studio Remote Code Execution Vulnerability
Integer underflow
Sep 2023: .NET Framework Remote Code Execution Vulnerability
CVE-2023-36788
7.8 - High
- September 12, 2023
.NET Framework Remote Code Execution Vulnerability
Sep 2023: Visual Studio Remote Code Execution Vulnerability
CVE-2023-36796
7.8 - High
- September 12, 2023
Visual Studio Remote Code Execution Vulnerability
Integer underflow
Microsoft ASP.NET Core SignalR & VS Info Disclosure (CVE-2023-35391)
CVE-2023-35391
7.5 - High
- August 08, 2023
ASP.NET Core SignalR and Visual Studio Information Disclosure Vulnerability
Aug 2023: .NET and Visual Studio Denial of Service Vulnerability
CVE-2023-38180
7.5 - High
- August 08, 2023
.NET and Visual Studio Denial of Service Vulnerability
Resource Exhaustion
DoS in .NET Core (CVE-2023-38178)
CVE-2023-38178
7.5 - High
- August 08, 2023
.NET Core and Visual Studio Denial of Service Vulnerability
Microsoft .NET & VS Remote Code Exec (CVE-2023-35390)
CVE-2023-35390
7.8 - High
- August 08, 2023
.NET and Visual Studio Remote Code Execution Vulnerability
CVE-2023-33170: ASP.NET VS Security Feature Bypass
CVE-2023-33170
8.1 - High
- July 11, 2023
ASP.NET and Visual Studio Security Feature Bypass Vulnerability
Race Condition
.NET/VS Elevation of Privilege via Internal Buffer Overflow
CVE-2023-33127
8.1 - High
- July 11, 2023
.NET and Visual Studio Elevation of Privilege Vulnerability
.NET Framework & VS Remote Code Execution Vulnerability
CVE-2023-24897
7.8 - High
- June 14, 2023
.NET, .NET Framework, and Visual Studio Remote Code Execution Vulnerability
Microsoft .NET Framework DoS via invalid input in Visual Studio
CVE-2023-29331
7.5 - High
- June 14, 2023
.NET, .NET Framework, and Visual Studio Denial of Service Vulnerability
Microsoft .NET/Visual Studio Elevation of Privilege
CVE-2023-24936
7.5 - High
- June 14, 2023
.NET, .NET Framework, and Visual Studio Elevation of Privilege Vulnerability
Microsoft .NET Framework RCE Vulnerability
CVE-2023-24895
7.8 - High
- June 14, 2023
.NET, .NET Framework, and Visual Studio Remote Code Execution Vulnerability
.NET Framework RCE via Visual Studio RCE Exploit (CVE-2023-33126)
CVE-2023-33126
7.3 - High
- June 14, 2023
.NET and Visual Studio Remote Code Execution Vulnerability
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