.NET
CVE-2026-50649 — .NET Remote Code Execution Vulnerability
Executive Summary
Deserialization of untrusted data in .NET allows an unauthorized attacker to execute code locally.
Overview
7.8
CVSS HIGH
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
ATTACK VECTOR
Local
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
None
USER INTERACTION
Required
SCOPE
Unchanged
CONFIDENTIALITY
High
INTEGRITY
High
AVAILABILITY
High
EXPLOIT CODE MATURITY
Unproven
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 6.8
EPSS Score
0.00918
probability of exploitation in the next 30 days
0.57142 percentile - updated 2026-08-14
View on FIRST.org
Affected Products
5 affected products
| Product | KB Article | Severity | Impact | Restart Required |
|---|---|---|---|---|
| .NET 8.0 installed on Windows | 5104032 (Security Update) |
Important | Remote Code Execution | Maybe |
| .NET 9.0 installed on Windows | 5104033 (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft Visual Studio 2022 version 17.12 | Release Notes (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft Visual Studio 2022 version 17.14 | Release Notes (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft Visual Studio 2026 version 18.7 | Release Notes (Security Update) |
Important | Remote Code Execution | Maybe |
Patches
3 patches
| Article | Type | Restart |
|---|---|---|
5104032 |
Security Update | Maybe |
5104033 |
Security Update | Maybe |
Release Notes |
Security Update | Maybe |
Known Exploits
No known exploits have been linked for this CVE yet. When available, exploit references will be sourced from public repositories and may be unverified, incomplete, or non-functional. Always review code carefully before use in any environment.
Acknowledgments
Kevin Gosse
41ae55e9310ff27fa6f26af4727e5590
References
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