PT-2026-58805 · Microsoft · .Net Framework

Published 2026-07-14 · Updated 2026-07-15 · CVE-2026-50646

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions .NET Framework (affected versions not specified)

Description A protection mechanism failure allows an unauthorized attacker to execute arbitrary code locally and remotely, which can affect the system.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

RCE

Deserialization of Untrusted Data

Protection Mechanism Failure

Weakness Enumeration

CWE-502

CWE-693

Related Identifiers

CVE-2026-50646

Affected Products

.Net Framework

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-50646 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-50646 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50646 · Vendor Advisory
• https://twitter.com/KooKiz/status/2077326806336557085 · Twitter Post