CVE intelligence

CVE-2026-47304

Vulnerability intelligence

Published Jul 14, 2026Sources checked Oct 28, 2026

9.8CRITICALCVSS out of 10

What this means

Review the available evidence

CVE-2026-47304 and is rated Critical severity with a CVSS score of 9.8. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.

What to do next

Remediation and response

Microsoft Security Response Center guidance

Vendor revision: Jul 21, 2026

Vendor remediation details

Release Notes Install KB5104034. Install KB5104032. Install KB5104033. Install KB5101007. Install KB5101009. Install KB5101011. Install KB5101008. Install KB5101010. Install KB5101006. Install KB5100989. Install KB5099535. Install KB5100990. Install KB5100991. Install KB5101005. Install KB5101000. Install KB5101003. Install KB5100998. Install KB5101004. Install KB5101001. Install KB5100984. Install KB5100985. Install KB5101002. Install KB5101014.

Vendor-listed releases

10.0.10
8.0.29
9.0.18
17.14.36
17.12.22
4.8.4803.0
2.0.50727.9069 & 3.0.30729.9067 & 4.8.4803.0
2.0.50727.9182 & 3.0.30729.9168 & 4.8.4803.0
2.0.50727.9069 & 3.0.30729.9067 & 4.7.4143.0
2.0.50727.8983 & 3.0.30729.8978 & 4.7.4143.0
4.7.4143.0
2.0.50727.9182 & 3.0.30729.9168 & 4.8.9339.0
2.0.50727.9182 & 3.0.30729.9168 & 4.8.9340.0
2.0.50727.8983 & 3.0.30729.8978
4.8.9340.0
2.0.50727.9182 & 3.0.30729.9168
18.7.4

CISA KEVNot listedBased on the latest collected catalog

EPSS0.3%Estimated 30-day exploitation probability

Ransomware useNot markedCISA KEV ransomware field

Threat actors0Source-linked actor relationships

Overview

What is CVE-2026-47304?

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

Source: NVD