Improper Verification of Cryptographic Signature in Visual Studio - CVE-2026-47304
Published: July 17, 2026
Vulnerability identifier: #VU137960
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-47304
CWE-ID: CWE-347
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Microsoft
Affected software:
Visual Studio
Visual Studio
Detailed vulnerability description
The vulnerability allows a remote attacker to bypass an authentication security feature.
The vulnerability exists due to improper verification of cryptographic signature in .NET when processing cryptographically signed data over a network. A remote attacker can submit crafted signed data to bypass an authentication security feature.
This vulnerability may allow impersonation.
How to mitigate CVE-2026-47304
Install security update from vendor's website.