CVE-2026-120778

Aspire Elevation of Privilege Vulnerability

Published Nov 10, 2026 CVSS 3.1 · 7.3 High EPSS < 1% KEV · Not listed
Description
Creation of temporary file in directory with insecure permissions in .NET Aspire allows an authorized attacker to elevate privileges locally.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-m63f-xhvm-6mv5 Microsoft Security Advisory CVE-2026-120778 - Aspire Elevation of Privilege Vulnerability
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Creation of temporary file in directory with insecure permissions in .NET Aspire allows an authorized attacker to elevate privileges locally.
Title Aspire Elevation of Privilege Vulnerability
First Time appeared Microsoft
Microsoft aspire.cli
Weaknesses CWE-379
CPEs cpe:2.3:a:microsoft:aspire.cli:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft aspire.cli
References
Metrics cvssV3_1

{'score': 7.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
microsoft
Published
Updated
Nov 13, 2026, 6:12 PM
Reserved
Nov 2, 2026, 10:42 PM
Status
Awaiting Analysis
Published
Nov 10, 2026, 7:20 PM
Modified
Nov 10, 2026, 7:20 PM