CVE intelligence

CVE-2026-96238

Vulnerability intelligence

Published Oct 13, 2026Sources checked Oct 21, 2026

6.5MEDIUMCVSS out of 10

What this means

Review the available evidence

CVE-2026-96238 and is rated Medium severity with a CVSS score of 6.5. 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: Oct 15, 2026

Vendor remediation details

Release Notes Install KB5130035. Install KB5130034. Install KB5130036.

Vendor-listed releases

9.0.122
11.0.100-rc.2
8.0.426
10.0.113
18.10.4
17.14.42

CISA KEVNot listedBased on the latest collected catalog

EPSS0.2%Estimated 30-day exploitation probability

Ransomware useNot markedCISA KEV ransomware field

Threat actors0Source-linked actor relationships

Overview

What is CVE-2026-96238?

Origin validation error in .NET allows an unauthorized attacker to bypass a security feature over a network.

Source: NVD