CVE-2026-50650

Local privilege escalation via code injection

Published Jul 14, 2026 · Updated Jul 14, 2026

Code injection in Microsoft .NET and .NET Framework allows local users to elevate privileges by inducing affected software to process crafted input. Microsoft has not disclosed the vulnerable component, input format, or operation that permits generated code to escape its intended restrictions. Exploitation requires user interaction and executes code with the privileges of the affected process, potentially granting elevated local access.

CVSS severity7.8
High
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in Microsoft .NET and .NET Framework allows local users to elevate privileges by inducing affected software to process crafted input. Microsoft has not disclosed the vulnerable component, input format, or operation that permits generated code to escape its intended restrictions. Exploitation requires user interaction and executes code with the privileges of the affected process, potentially granting elevated local access.

The record

CVE
CVE-2026-50650
Published
Jul 14, 2026
Updated
Jul 14, 2026
Vendor
Microsoft
Product
Microsoft .NET Framework 3.5 and 4.8
Classifications
CWE-94, T1204
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 14, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4.8.0 <2.0.50727.9069 & 3.0.30729.9067 & 4.8.4803.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Microsoft · Microsoft .NET Framework 3.5 and 4.8version=4.8.0 <2.0.50727.9069 & 3.0.30729.9067 & 4.8.4803.0
Microsoft · .NET 9.0version=9.0.0 <9.0.18
Microsoft · Microsoft .NETversion=8.0.0 <8.0.29
Microsoft · Microsoft Visual Studio 2022 version 17.12version=17.12.0 <17.12.22
Microsoft · Microsoft Visual Studio 2022 version 17.14version=17.14.0 <17.14.36
Microsoft · Microsoft Visual Studio 2026version=18.0 <18.7.4
Microsoft · Microsoft .NET Frameworkversion=4.7.0 <2.0.50727.9069 & 3.0.30729.9067 & 4.7.4143.0; version=4.7.0 <4.7.4143.0; version=4.8.1 <2.0.50727.9182 & 3.0.30729.9168 & 4.8.9339.0
Microsoft · Microsoft .NET Framework 3.5version=3.5.0 <2.0.50727.8983 & 3.0.30729.8978
Microsoft · Microsoft .NET Framework 4.8version=4.8.0 <4.8.4803.0

Published CVSS scores

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

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1204User Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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