CVE-2026-47304

41

FAUCET Score

Improper verification of cryptographic signature in .NET allows an unauthorized attacker to bypass a security feature over a network.

First published: Jul 14, 2026Last modified: Jul 22, 2026

Impacted Technologies

Vendor	Product	Version(s)	CPE
		4.8.1CPE matchmatch criteria	cpe:2.3:a:microsoft:.net_framework:4.8.1:::::::*
		4.8CPE matchmatch criteria	cpe:2.3:a:microsoft:.net_framework:4.8:::::::*
		4.6.2CPE matchmatch criteria	cpe:2.3:a:microsoft:.net_framework:4.6.2:::::::*
		4.7CPE matchmatch criteria	cpe:2.3:a:microsoft:.net_framework:4.7:::::::*
		4.7.1CPE matchmatch criteria	cpe:2.3:a:microsoft:.net_framework:4.7.1:::::::*

CVSS Data

CVSS version used by this source: 3.1

8.1HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

Exploitability Score

2.2

Impact Score

5.9

CvssVersion

3.1

Exploit Intelligence

EPSS Score

0.22%

Probability of exploitation in next 30 days

EPSS Percentile

12.1%

Percentile rank of EPSS score among Peer Group

As of 2026-07-27

Model: v2026.06.15

This CVE's current EPSS score of 0.0022 is in the 0th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (80)

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 3.5 on Windows Server 2012 (Server Core installation)Fixed in: 2.0.50727.8983 & 3.0.30729.8978

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 24H2 for x64-based SystemsFixed in: 2.0.50727.9182 & 3.0.30729.9168 & 4.8.9339.0

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 version 26H1 for x64-based SystemsFixed in: 2.0.50727.9182 & 3.0.30729.9168

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 26H1 for ARM64-based SystemsFixed in: 2.0.50727.9182 & 3.0.30729.9168

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 3.5 on Windows Server 2012 R2 (Server Core installation)Fixed in: 2.0.50727.8983 & 3.0.30729.8978

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 4.8.1 on Windows 11 version 26H1 for x64-based SystemsFixed in: 4.8.9340.0

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 3.5 on Windows 11 version 26H1 for x64-based SystemsFixed in: 2.0.50727.9182 & 3.0.30729.9168

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 3.5 on Windows 11 Version 26H1 for ARM64-based SystemsFixed in: 2.0.50727.9182 & 3.0.30729.9168

microsoftpatch availablevia msrc

Product: Microsoft Visual Studio 2026 version 18.7Fixed in: 18.7.4

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 3.5 on Windows Server 2012Fixed in: 2.0.50727.8983 & 3.0.30729.8978

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 3.5 AND 4.8.1 on Windows Server 2025 (Server Core installation)Fixed in: 2.0.50727.9182 & 3.0.30729.9168 & 4.8.9340.0

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 3.5 AND 4.8.1 on Windows Server 2025Fixed in: 2.0.50727.9182 & 3.0.30729.9168 & 4.8.9340.0

microsoftpatch availablevia msrc

Product: .NET 10.0 installed on Mac OSFixed in: 10.0.6

microsoftpatch availablevia msrc

Product: .NET 10.0 installed on LinuxFixed in: 10.0.6

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 23H2 for x64-based SystemsFixed in: 2.0.50727.9182 & 3.0.30729.9168 & 4.8.9339.0

microsoftpatch availablevia nvd_reference

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 4.8.1 on Windows 11 Version 26H1 for ARM64-based SystemsFixed in: 4.8.9340.0

microsoftpatch availablevia msrc

Product: .NET 10.0 installed on Mac OSFixed in: 10.0.10

microsoftpatch availablevia msrc

Product: .NET 10.0 installed on LinuxFixed in: 10.0.10

microsoftpatch availablevia msrc

Product: .NET 8.0 installed on WindowsFixed in: 8.0.29

microsoftpatch availablevia msrc

Product: .NET 8.0 installed on LinuxFixed in: 8.0.29

microsoftpatch availablevia msrc

Product: .NET 8.0 installed on Mac OSFixed in: 8.0.29

microsoftpatch availablevia msrc

Product: .NET 9.0 installed on LinuxFixed in: 9.0.18

microsoftpatch availablevia msrc

Product: .NET 9.0 installed on Mac OSFixed in: 9.0.18

microsoftpatch availablevia msrc

Product: .NET 9.0 installed on WindowsFixed in: 9.0.18

microsoftpatch availablevia msrc

Product: Microsoft Visual Studio 2022 version 17.14Fixed in: 17.14.36

microsoftpatch availablevia msrc

Product: Microsoft Visual Studio 2022 version 17.12Fixed in: 17.12.22

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for 32-bit SystemsFixed in: 4.8.4803.0

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based SystemsFixed in: 4.8.4803.0

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 4.8 on Windows Server 2016Fixed in: 4.8.4803.0

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 4.8 on Windows Server 2016 (Server Core installation)Fixed in: 4.8.4803.0

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 4.8 on Windows Server 2012Fixed in: 4.8.4803.0

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 4.8 on Windows Server 2012 (Server Core installation)Fixed in: 4.8.4803.0

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 4.8 on Windows Server 2012 R2Fixed in: 4.8.4803.0

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 4.8 on Windows Server 2012 R2 (Server Core installation)Fixed in: 4.8.4803.0

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for 32-bit SystemsFixed in: 2.0.50727.9069 & 3.0.30729.9067 & 4.8.4803.0

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for x64-based SystemsFixed in: 2.0.50727.9069 & 3.0.30729.9067 & 4.8.4803.0

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019Fixed in: 2.0.50727.9069 & 3.0.30729.9067 & 4.8.4803.0

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019 (Server Core installation)Fixed in: 2.0.50727.9069 & 3.0.30729.9067 & 4.8.4803.0

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2022Fixed in: 2.0.50727.9182 & 3.0.30729.9168 & 4.8.4803.0

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2022 (Server Core installation)Fixed in: 2.0.50727.9182 & 3.0.30729.9168 & 4.8.4803.0

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 21H2 for 32-bit SystemsFixed in: 2.0.50727.9182 & 3.0.30729.9168 & 4.8.4803.0

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 21H2 for ARM64-based SystemsFixed in: 2.0.50727.9182 & 3.0.30729.9168 & 4.8.4803.0

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 21H2 for x64-based SystemsFixed in: 2.0.50727.9182 & 3.0.30729.9168 & 4.8.4803.0

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 22H2 for x64-based SystemsFixed in: 2.0.50727.9182 & 3.0.30729.9168 & 4.8.4803.0

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 22H2 for ARM64-based SystemsFixed in: 2.0.50727.9182 & 3.0.30729.9168 & 4.8.4803.0

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 22H2 for 32-bit SystemsFixed in: 2.0.50727.9182 & 3.0.30729.9168 & 4.8.4803.0

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for 32-bit SystemsFixed in: 2.0.50727.9069 & 3.0.30729.9067 & 4.7.4143.0

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for x64-based SystemsFixed in: 2.0.50727.9069 & 3.0.30729.9067 & 4.7.4143.0

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019Fixed in: 2.0.50727.9069 & 3.0.30729.9067 & 4.7.4143.0

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019 (Server Core installation)Fixed in: 2.0.50727.9069 & 3.0.30729.9067 & 4.7.4143.0

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1607 for 32-bit SystemsFixed in: 2.0.50727.8983 & 3.0.30729.8978 & 4.7.4143.0

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1607 for x64-based SystemsFixed in: 2.0.50727.8983 & 3.0.30729.8978 & 4.7.4143.0

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2016Fixed in: 2.0.50727.8983 & 3.0.30729.8978 & 4.7.4143.0

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2016 (Server Core installation)Fixed in: 2.0.50727.8983 & 3.0.30729.8978 & 4.7.4143.0

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012Fixed in: 4.7.4143.0

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 (Server Core installation)Fixed in: 4.7.4143.0

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 R2Fixed in: 4.7.4143.0

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 R2 (Server Core installation)Fixed in: 4.7.4143.0

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 3.5 AND 4.8.1 on Windows Server 2022Fixed in: 2.0.50727.9182 & 3.0.30729.9168 & 4.8.9339.0

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 3.5 AND 4.8.1 on Windows Server 2022 (Server Core installation)Fixed in: 2.0.50727.9182 & 3.0.30729.9168 & 4.8.9339.0

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 21H2 for 32-bit SystemsFixed in: 2.0.50727.9182 & 3.0.30729.9168 & 4.8.9339.0

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 21H2 for ARM64-based SystemsFixed in: 2.0.50727.9182 & 3.0.30729.9168 & 4.8.9339.0

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 21H2 for x64-based SystemsFixed in: 2.0.50727.9182 & 3.0.30729.9168 & 4.8.9339.0

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 22H2 for x64-based SystemsFixed in: 2.0.50727.9182 & 3.0.30729.9168 & 4.8.9339.0

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 22H2 for ARM64-based SystemsFixed in: 2.0.50727.9182 & 3.0.30729.9168 & 4.8.9339.0

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 22H2 for 32-bit SystemsFixed in: 2.0.50727.9182 & 3.0.30729.9168 & 4.8.9339.0

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 25H2 for ARM64-based SystemsFixed in: 2.0.50727.9182 & 3.0.30729.9168 & 4.8.9340.0

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 25H2 for x64-based SystemsFixed in: 2.0.50727.9182 & 3.0.30729.9168 & 4.8.9340.0

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 23H2 for ARM64-based SystemsFixed in: 2.0.50727.9182 & 3.0.30729.9168 & 4.8.9339.0

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 24H2 for ARM64-based SystemsFixed in: 2.0.50727.9182 & 3.0.30729.9168 & 4.8.9339.0

microsoftpatch availablevia msrc

Product: Microsoft .NET Framework 3.5 on Windows Server 2012 R2Fixed in: 2.0.50727.8983 & 3.0.30729.8978

nugetpatch availablevia ghsa

Product: System.Security.Cryptography.XmlFixed in: 10.0.10

nugetpatch availablevia ghsa

Product: System.Security.Cryptography.XmlFixed in: 9.0.18

nugetpatch availablevia ghsa

Product: System.Security.Cryptography.XmlFixed in: 8.0.4

nugetpatch availablevia ghsa

Product: System.Security.Cryptography.XmlFixed in: 8.0.29

ubuntupatch availablevia ubuntu_usn

Product: dotnet10 (resolute)Fixed in: 10.0.110-10.0.10-0ubuntu1~26.04.1

ubuntupatch availablevia ubuntu_usn

Product: dotnet8 (jammy)Fixed in: 8.0.129-8.0.29-0ubuntu1~22.04.1

ubuntupatch availablevia ubuntu_usn

Product: dotnet10 (noble)Fixed in: 10.0.110-10.0.10-0ubuntu1~24.04.1

ubuntupatch availablevia ubuntu_usn

Product: dotnet8 (noble)Fixed in: 8.0.129-8.0.29-0ubuntu1~24.04.1

Vendor Advisories (3)

nugetGHSA-g8r8-53c2-pm3fhigh

Microsoft Security Advisory CVE-2026-47304 – .NET Security Feature Bypass Vulnerability

ubuntuUSN-8553-1

.NET vulnerabilities

microsoft2026-Jul/CVE-2026-47304Important

.NET Security Feature Bypass Vulnerability

References

msrc.microsoft.com / update-guide/vulnerability/CVE-2026-47304

PatchVendor Advisory