CVE intelligence

CVE-2026-26171

Vulnerability intelligence

Published Apr 14, 2026Sources checked Nov 14, 2026

7.5HIGHCVSS out of 10

What this means

Review the available evidence

CVE-2026-26171 and is rated High severity with a CVSS score of 7.5. 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: Apr 22, 2026

Vendor remediation details

Release Notes Install KB5086095. Install KB5086096. Install KB5086097.

Vendor-listed releases

7.5.6
10.0.6
8.0.26
9.0.15
7.6.1

CISA KEVNot listedBased on the latest collected catalog

EPSS1.8%Estimated 30-day exploitation probability

Ransomware useNot markedCISA KEV ransomware field

Threat actors0Source-linked actor relationships

Overview

What is CVE-2026-26171?

Uncontrolled resource consumption in .NET allows an unauthorized attacker to deny service over a network.

Source: NVD