CVE-2026-47304: .NET Security Feature Bypass Vulnerability

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

CSIRTS triage

What: Improper verification of cryptographic signature in .NET allows an unauthorized attacker to bypass a security feature over a network.
Who is affected: Deployments of .NET.
Urgency: Remediation is urgent due to the high severity and potential for security feature bypass.
Action: Apply the latest security patch for .NET.

AI-assisted analysis generated from the source advisory — verify against the original.

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EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-473040.22% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 12% of all scored CVEs.

CVE	CSIRTS overview	External
CVE-2026-47304	coverage & exploitation status	NVD · CVE.org

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