CVE-2026-50646: CWE-693: Protection Mechanism Failure in Microsoft .NET 8.0
CVE-2026-50646 is a high-severity vulnerability in Microsoft .NET 8.0 involving a protection mechanism failure that allows an unauthorized local attacker to execute code. The vulnerability has a CVSS score of 7.8 and affects version 8.0.0 of .NET. An official fix is available from Microsoft.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-50646) in Microsoft .NET Framework 8.0 is classified as a protection mechanism failure (CWE-693) and also relates to CWE-502. It permits an unauthorized attacker to execute code locally on the affected system. The CVSS 3.1 vector indicates low attack complexity and no privileges required, but user interaction is needed. The impact includes high confidentiality, integrity, and availability consequences. The vulnerability is officially fixed by Microsoft.
Potential Impact
Successful exploitation allows an unauthorized local attacker to execute arbitrary code, potentially compromising confidentiality, integrity, and availability of the affected system. This could lead to full system compromise depending on the privileges of the executing code.
Mitigation Recommendations
An official fix is available from Microsoft for .NET 8.0. Users and administrators should apply the provided patch to remediate this vulnerability. No additional mitigation steps are indicated by the vendor advisory.
CVE-2026-50646: CWE-693: Protection Mechanism Failure in Microsoft .NET 8.0
Description
CVE-2026-50646 is a high-severity vulnerability in Microsoft .NET 8.0 involving a protection mechanism failure that allows an unauthorized local attacker to execute code. The vulnerability has a CVSS score of 7.8 and affects version 8.0.0 of .NET. An official fix is available from Microsoft.
CVSS v3.1
Score 7.8high
Affected software
pkg:deb/ubuntu/[email protected]~22.04.1?arch=source&distro=jammyRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-50646) in Microsoft .NET Framework 8.0 is classified as a protection mechanism failure (CWE-693) and also relates to CWE-502. It permits an unauthorized attacker to execute code locally on the affected system. The CVSS 3.1 vector indicates low attack complexity and no privileges required, but user interaction is needed. The impact includes high confidentiality, integrity, and availability consequences. The vulnerability is officially fixed by Microsoft.
Potential Impact
Successful exploitation allows an unauthorized local attacker to execute arbitrary code, potentially compromising confidentiality, integrity, and availability of the affected system. This could lead to full system compromise depending on the privileges of the executing code.
Mitigation Recommendations
An official fix is available from Microsoft for .NET 8.0. Users and administrators should apply the provided patch to remediate this vulnerability. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- UBUNTU-CVE-2026-50646
- Osv Schema Version
- 1.7.0
- Ecosystems
- ["Ubuntu:22.04:LTS"]
- Cvss Version
- 3.1
- Remediation Level
- official-fix
- State
- PUBLISHED
Threat ID: 6a5e7a742a4a8d59899debe4
Added to database: 07/20/2026, 19:43:48 UTC
Last enriched: 09/12/2026, 10:17:43 UTC
Last updated: 09/13/2026, 10:01:31 UTC
Views: 28
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