CVE-2026-50649

dotnet: .NET: Local code execution via deserialization of untrusted data

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Severity

Important

Red Hat Product Security

7.8

CVSS 3.1

Review impact separately from score.

Published · July 15, 2026

Updated · October 9, 2026

Description

A flaw was found in .NET. This vulnerability allows an unauthorized attacker to execute code locally by exploiting a deserialization of untrusted data. This means that if an attacker can provide specially crafted data, the .NET application may process it in a way that leads to the execution of malicious code on the system where the application is running.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 7.8
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CWE-502 · Deserialization of Untrusted Data